He was the best right-handed first baseman I ever saw. It was amazing to watch him turn the 3-6-3 DP. He was amazingly quick for a man his size. Not fleet of foot, but once he got rolling, he was a cement truck rolling downhill. I saw him leg out an inside-the-park HR once.
He was actually a third baseman in the minors and when he first came up. The Sox moved him to first to make room for a certain phenom at third named Joe Foy. Foy was the kind of third sacker that would make an amazing stop, and then throw the ball 5 rows deep into the first base stands.
Boomer did save him a few points on his fielding percentage, but his career was short-lived. I think he hung on for a few years afterwards in the NL.