I switched from a M3 to a R62 last year and let me tell you it takes some getting used to. The rotary works a lot different you just have to learn it, I'm still learning but maybe I'm just slow. The biggest problem I had was running the rotor to fast, that just grinds stuff up and makes the sample dirty. another problem I had was driving to slow, you must keep these machines full for them to work properly. I am still amazed how much more material the rotor will take than the conventional. One thing I do miss is the visual tailing return but I'm getting used to it. Good luck with your 52 and if you need more help don't be afraid to ask, someone here with more experence than me can give you some advice.