I think that the PM8 is last years DM7 in a new body, or thats what I've been given the impression of any way, but they both shoot pretty well
and no eye plates , smaller lpr and they have made it lighter fair enough only by 1.5 oz but its still lighter. and if i had to shoot a pm8 i would wait for my next pay check to come in and get a dm8. couple of guys at my site last year had pm7 when i had a dm7 and they had them in bits always fannying around with something ... however the dm7 shot flawlessly (the problem was between the trigger and the brain)...the only difference between the DM7 and the DM8 is the change from the Hyper2 to the Hyper3!!