Replying to Center Mounting?

Well last season I rode some Scratch Ghetto's, 181, and I really liked them.  They were just slightly too stiff but almost perfect flex, not much chatter, super stable on landing, etc, I really like them.  However, I mounted them at -4 because thats as close to center as you can get without voiding the warranty, flex pattern isn't approved to mount closer than that or something.  Well, I ended up doing more rails and less big jumps than I was expecting and found myself really wanting center mount.  I also sort of want more flex.

So, do I

a) Sell the skis and bindings to a friend for $250 (only paid like $350), get one of last year's skis at outlet price and outlet some bindings and just do a new set up?

b) Remount the Ghetto's at center (will they hold up fine?) and risk breaking them and having to straight up buy new skis?

c) Just stick with what I have because center mount won't really make that much of a difference?

I haven't ridden skis center mounted before, is there even that big of a difference between -4 and true center?  Am I even really going to notice it?