I ended up going with the Sphinx, more based on a "want" than a real "need". I'm sure that the RAMI would have worked great. I mentioned in another thread that after only about 40 rounds I found the SDP to be very ergonomic for me, very pointable, fit/finish was impeccable. My only issue was that the DA felt gritty. I'm going to put a few hundred rounds through it, and then if needed reach out to David to see if he could do some trigger work.
I would also like to mention, as opposed to what I saw in some other threads, that for me the pistol was spot-on accurate. Others had reported that it shot down and to the left from POA, but I did not have that experience.
Thx, JR