always good to have more cells than you need so that you can pick and choose. Our (tinkle) is a slow gentle rock back and foward and at first i was concerned about the poor q crashing into the ceiling then the floor of her little house but after testing and checking thousands of cell have no concerns about this test if done with care. Agree that wing buds are fragile, I can remember once loosing half a batch of cells from a powercut, We sourced about 50 spare leftover cells from a friend to reduce the short fall, of these vertually all hatched but none mated. The un affected half of our own cells hatched and mated with good scucess so weather was not a factor. Unfortunally i never discovered what went wrong with these cells but it proved to me how important carefull handling is and that just because a cell hatches does not necessaraly mean they are ok. Also i how have a backup system in my incubator and can handle a 10 hr powercut I must reiterate the tinkling is a very gentle rock from side to side...I take great care with my cells all through my system. A dodgy cell whether it is caused by me or some other reason just costs me potential income and ties up a nuc for no possible pay off, well worth the relatively small risk of gently tinkling the cell in my opinion. I personally would be disappointed if