Complex sentence: Woods had used a Scotty Cameron putter for all of his professional golf victories up to December 2011 and his last and most used Scotty Cameron putter was first put into play in July 1999.
Split into simpler sentences: Woods had used a Scotty Cameron putter for all of his professional golf victories up to December 2011. His most used Scotty Cameron putter was first put into play in July 1999.