I've seen posts from people who've done it here and seen it in some magazines for the FAST racers. I've got a resto group 27 battery that died a few years ago that I want to use for a shell. What did you use to cut out the bottom? Are there any tricks or things to avoid? Did you find an aftermarket battery that the terminal posts line up with the resto case? Will the left-over acid reside that will inevitably get all over my clothes cause them to fall apart?