The only project that I got to work on today was installing a tsunami sound decoder into one of my Atlas GP38. I had two of these left to do and finally decided to work on them today. I milled the weights on both of them while I was in the shop.
In these locos, there is enough room for a current keeper on top of the board. I am completely enamored with current keepers. They make locos run so much smoother. I have purchased a pile of these and am adding them to any locomotives in the fleet that don't already have them. Soundtraxx makes the best one in my opinion, but TCS makes a very good one as well. The TCS one is about half the size, but only holds power for about 3 seconds. The tsunami one will hold power for 10 seconds.
I prefer Train Master speakers. They have models with baffels installed that fit most popular locos. I got one all buttoned up, programed and running. Hopefully I will get the final GP38 finished tomorrow and can start putting current keepers in my trio of GP7s.