As a Slot one device I use the R4 which works perfectly, but I'm looking for a good Slot 2 to use just for GBA games. I know of the EZF V, M3 and G6 but I'm not too sure how they stack up to each other. So I just need to know if they can be used as a standalone or if I need to use one of them w/ the R4. I wanna have the R4 for DS games and one of these 3 to fit in my DS Lite for GBA games...