Sorry that I haven't kept in touch with this thread in a while but....
Is a DP 95 rangefinder the right size for a Mystery Helmet with a RA stalk???
Bob, I know that the RF's in both are almost the same size, just a little differences between both making the Mystery Helmet RF top just a little bit larger than the DP version, in just some areas, but noticeable if you're picky (as I am).
I used the DP RF top with a Mardon's stalk and it did the job for me well!