GBA SP  works much better for LSDj than the older Gameboy Advance.
Top reasons why Gba Sp rewlz ...
- the most luxurious screen you can play LSDj on (no more squinting @ the gameboy w/ a candle at your gig)
- Processor runs faster than old gray/pocket gameboys (same speed as color) ... work those tables!
- Rich, crisp sound.
- button placement is very close to original gb and the buttons feel great (not mushy at all after a few years of banging)