An orifice plate change system for changing an orifice plate that is registered with a spout bowl arrangement (110, 118), the spout bowl arrangement (110, 118) having a spout bowl arrangement orifice and a spout bowl arrangement sealing face surrounding the spout bowl arrangement orifice, the orifice plate change system comprising: a guide arrangement having a charging plate region and an operating plate region; a plurality of orifice plates (122, 142, 144), each orifice plate (122, 142, 144) having at least one orifice and an orifice plate sealing face (188, 190, 192) configured to seal with the spout bowl arrangement sealing face, each orifice plate (122, 142, 144) being configured to be slidably carried by the guide arrangement and slidable relative to the guide arrangement between the charging plate region in which the orifice thereof is offset from the spout bowl arrangement orifice and the operating plate region in which the orifice thereof is registered with the spout bowl arrangement orifice, the plurality of orifice plates (122, 142, 144) including: a first orifice plate having a first orifice; a second orifice plate having a second orifice, the second orifice being different than the first orifice such that a stream of molten glass that passes through the second orifice will have a different physical characteristic than a stream of molten glass passing through the first orifice; and an actuator configured to translate, operably, an orifice plate (122, 142, 144) from the charging plate region to the operating plate region along a translation axis; characterized in that the charging plate region has a charging plate support that acts on an orifice plate (122, 142, 144) when the orifice plate (122, 142, 144) is located within the charging plate region, the charging plate region provides a first biasing force orthogonal to the spout bowl arrangement sealing face to an orifice plate (122, 142, 144) located within the charging plate region; and in that the operating plate region has an operating plate support that acts on an orifice plate (122, 142, 144) when the orifice plate (122, 142, 144) is located within the operating plate region, the guide arrangement provides a second biasing force orthogonal to the spout bowl arrangement sealing face to an orifice plate (122, 142, 144) located within the operating plate region, the second biasing force being parallel to and greater than the first biasing force, the second biasing force biasing the orifice plate sealing face (188, 190, 192) of the orifice plate (122, 142, 144) located therein into abutment with the spout bowl arrangement sealing face. a guide arrangement having a charging plate region and an operating plate region; a plurality of orifice plates (122, 142, 144), each orifice plate (122, 142, 144) having at least one orifice and an orifice plate sealing face (188, 190, 192) configured to seal with the spout bowl arrangement sealing face, each orifice plate (122, 142, 144) being configured to be slidably carried by the guide arrangement and slidable relative to the guide arrangement between the charging plate region in which the orifice thereof is offset from the spout bowl arrangement orifice and the operating plate region in which the orifice thereof is registered with the spout bowl arrangement orifice, the plurality of orifice plates (122, 142, 144) including: a first orifice plate having a first orifice; a second orifice plate having a second orifice, the second orifice being different than the first orifice such that a stream of molten glass that passes through the second orifice will have a different physical characteristic than a stream of molten glass passing through the first orifice; and a first orifice plate having a first orifice; a second orifice plate having a second orifice, the second orifice being different than the first orifice such that a stream of molten glass that passes through the second orifice will have a different physical characteristic than a stream of molten glass passing through the first orifice; and an actuator configured to translate, operably, an orifice plate (122, 142, 144) from the charging plate region to the operating plate region along a translation axis; characterized in that the charging plate region has a charging plate support that acts on an orifice plate (122, 142, 144) when the orifice plate (122, 142, 144) is located within the charging plate region, the charging plate region provides a first biasing force orthogonal to the spout bowl arrangement sealing face to an orifice plate (122, 142, 144) located within the charging plate region; and in that the operating plate region has an operating plate support that acts on an orifice plate (122, 142, 144) when the orifice plate (122, 142, 144) is located within the operating plate region, the guide arrangement provides a second biasing force orthogonal to the spout bowl arrangement sealing face to an orifice plate (122, 142, 144) located within the operating plate region, the second biasing force being parallel to and greater than the first biasing force, the second biasing force biasing the orifice plate sealing face (188, 190, 192) of the orifice plate (122, 142, 144) located therein into abutment with the spout bowl arrangement sealing face.