Bloack. Made a bigger difference then expected when I upgraded my friends.
I find the block on the CS pretty decent.
I'd do the RS kit first, given the choice of the C'ham block or RS kit.
I think you get more bang for the buck using RS kits on any Strat... much less bang changing the block on a CS. You may try removing the paint from the CS steel block if you're not satisfied with its character.
That's been my experience...
Did you put a kit in a CS strat?
Thanks for all the advice so far!
I put callaham stuff of my custom shop strat and love the functionality of it. I'll never want a standard trem arm again but didn't do much for the tone. The stock bridge was pretty good. The rs kit will be a more noticable upgrade but be careful on a bright guitar and or amp
What difference did it make? Which model strat?
I replaced the block in my 56 CS strat, but only because it was stripped by previous owner and I got a deal on a used one. Did notice any difference in tone but it's a nice block. I think the pots in fenders are already pretty good. Why do you want to change yours? Pup replacement on my CS strat made a huge difference. The stock pups were pretty bland.
I did in a CS60s Relic Strat. It charmed that guitar. I did not replace anything else.
My current CS56 is completely stock (except the plastic). Everything on this guitar was great straight out of the box. It leaves me desiring for nothing functionally, and its tone is probably the best I've heard (Abby signature pups).