I've purchased a couple of unreleased SNES prototypes, and am hoping to get them this week. One is on a proto board, and the other is on four EPROMs without a board. I don't have an EPROM reader, though. Since I don't have a proto board with more than 2 EPROM slots, I was wondering if it was safe to dump the game by putting the chips on two at a time and dumping them that way, later recombining them. I'm using a Mash Mods USB flash programmer, btw.

That should work fine, I've done something similar with a Super Wild Card DX2, never tried a USB reader doing it.