Something to think about..... Spring Air makes retracts that are almost identical in size, hole location,etc... as Rom-Air. The biggest difference is Spring Air uses a spring to let the gear down if there is pressure loss. I'm not knocking Rom-Air.... I have 2 sets in planes right now.... but the added insurance of knowing that my gear will come down every time makes flying more enjoyable. IF you do go for Rom-Airs, I would get a modern sequence valve from Robart since this was/is (in my book) the weak link of the Rom-Airs. Another thing to consider too is parts for the Rom-Air retracts, since they are no longer in business.

Just my 2 cents.