lol I can't even remember what stock Crack sounds like anymore. All my builds except the very first a couple of years ago have had the Speedball installed in the get-go. Just be aware that installing the Speedball after the fact does require some unsoldering and dismantling of a few components. Nothing too crazy, though.
I highly recommend reading through the speedball manual before starting the Crack build though, and make a couple small changes during the initial build:
- note of which resistors will be cut off for the upgrade and install them with a bit of extra lead spacing to they're easier to cut
- some caps will be bent into a new position, so you might as well install that way from the start
- the speedball boards mount onto some spacers, which are much easier installed at the very beginning because trying to finagle those little tiny nuts (that's what she said?) is rather tricky when you have all the other components soldered in place