Hmm is it the pin placement or switch spacing? They looked like they had the same pin placement, but I know choc V1 boards tend to use a tighter spacing than V2, but that’s going to vary somewhat, and you might be able to work around that with the right keycaps (maybe certain DSA caps?). At any rate it’s worth pointing out it might be a problem.

Edit: looked it up and apparently the center stabilizer is slightly larger on the V2 which often doesn’t fit in a V1 board, but a V1 switch should be able to fit into a V2 board. There’s also an extra stabilizer pin on V2 switches but that can be snipped off just like the ones on cherry switches. In theory depending on how closely traces are routed you might be able to enlarge the center post hole of a V1 board to fit a V2 switch but that’s a very risky procedure with lots of opportunity to permanently break a board so I’m not sure I would recommend it to anyone who isn’t either a) made of money, or b) an expert at electronics and modding boards.