8" front, 7" rear?

I currently have a 66vf with almost 7" of travel on the front of my 2006 Rocky Mountain Switch 2.0. The rear is outfitted with a DHX 4.0 and has 7" of travel as well. Its a well balanced bike, however I am interested in upgrading to a double crown, because of the fact that I am into mostly hucking off large drops, not too concerned with the weight factor...only makes my legs stronger chugging up hill. So I am looking at the 888vf2 and 888rc2. I know they come with 8" on travel stock, but is it possible to set them up for only 7" of plushness? Would 8" up front be too much, making it unbalanced? Thanks for the help, this board is a fantastic resource when you don't personally know others into the same hobby. I also question the knowledge of the staff at a lot of the shops I go to.