I liked the fact that I could (and DID) adjust the trigger on my B78's (I had 3 - a RB 6mm, a tapered octagon -06, and a straight octagon .45-70) - I had little problem, mounting a receiver peep sight on the .45-70 and the -06, but I DID have to rasp down the -06's cheekpiece to see the sights, though (I installed a narrow Williams Streamline ramp front sight on that rifle).
I had NP working on my B78's because I was lucky enough to get my mitts on a factory issue/copy of the B78 Field Service Manual.
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