Hi Rich.
It has been a long time since I had an artillery sight removed from a pistol, but as I recall (and that gets harder all the time!) there is a VERY slight arch in the base so only the ends of the dovetail are in play when mounted. I don't think there is any spring action involved as the steel base is pretty substantial and I doubt it would "flex" to creat the spring action you are talking about. I don't see any other functional reason for the arch, so if you make it flat for simplicity sake, no harm no foul IMHO.
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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