I have just one SNES sports game lying around, I'm gonna make it more useful by reproing it. The BS Zelda I'm using is:

BS Zelda no Densetsu (Japan) (BS) [En+Hack by BSZHP v20081211] (~BS The Legend of Zelda) (Real Hardware Edition) (Timer+No Limit)

It weighs in at 1.5MB, or 12Mbits. BS Zelda's SRAM file is 32KB.

NBA Showdown uses a 1MB mask ROM and 64KB SRAM. I can get the board type if needed.

In short, if I pad BS Zelda to fit a 2MB / 16Mbit flash chip, will it work with this donor?

Also, since nobody likes extra threads, I want to make a SMT2 translated repro using the original SFC cartridge. The translated ROM is 2.5MB / 20Mbit. Should I pad the ROM to fit a 4MB / 32Mbit flash chip? Or does the SMT2 board not support 4MB?

Thanks guys!