Will this cause interference?
I own a Crazy Max (bought it in February of this year) and I think that this is standard for the servos to touch (at least for the Rudder/Elevator combination of servos...)
I am not using 55's, I am using 81's, but they will be fine...just be careful with how you locate the wing in the wing saddle, and make sure that you do a little sanding around the sharp edges of the saddle after you cut it down to size...I didn't have this problem, but I have heard of a couple of people losing their fuse from the wing because that sharp-edges plastic cut through the rubberbands that they were holding their wings on with...also, even though the plans call for 2 rubberbands on the wing...just use 4...better safe than sorry...
-John