2 channel serial mod loss of volume

Wondering if anybody had a problem after modding your fx loop from parallel to serial a noticeable volume loss. It seems for me I having my channel volumes on 10 and using my fx loop master for main volume and that is cranked at to 7 or 8 to get a good stage volume. I use to set that on maybe 3 and the channel mains were on 3 or 4.. I foloowed the instruction from mesa to mod it correct and it does sound good but wondering where my volume went... any help would be great..

JGrimm -

Have you gotten this sorted out yet?

What 'mod' from Mesa are you using?

A-Boogie

Still have loss of volume.. The mod was just to change the parallel FX to Serial. Also is it possible that I can be overloading my amp when I turn it up loud cause I hear the sound breaking apart...