Congrats on the SD2SNES pro, I'd hate having the rebranded name... I think its rather bland "FXPak"....
It's a great flashcart, and I have alot of fun with it.... I also have Everdrive v3, no plans to upgrade to new version (x7). Other flashcarts in my collection largely focus on portable systems... Everdrive GB X7, Everdrive GBA X5, and a couple for DS and 3DS. It's defintely a fun hobby!
although I might go through and delete the US versions of all of the games developed in Japan.
You mean US versions that were often modified to make them excessively harder (removal of continues/lives/hit points)? And censored/changed graphics for whatever reasons (sometimes odd IP tieins to movies)?
I have a different problem and use for my flashcarts.. that being waiting and hoping for English translation romhacks for games (particulary rpgs), one of the main reasons I got into flashcarts.