Hi, I was curios if anyone has had any experience with the Fender Prosonic effects loop. Apparantley, they run a little hot (+4db) and many have criticized its usability. I am very interested in buying this amp as I have read many great reviews, and it has all the features I need. I am concerned about the effects loop though. I run an analogue pedal board direct into my amp now, but use a lexicon mpx100 in the loop where it seems to work well. Will I run into problems with this setup on a Prosonic?

Thanks in advance for any help