Gary, I wrote a list of ten differences between the two kits and have it posted on my website. This link will take you there...

http://www.btemodels.com/vt_vs_fs.html

Also, about the aft-mounted servos - if anything, the V60 tends to build nose heavy, so the aft servos might actually help the balance. It depends a lot on engine weight, but I rarely hear from anybody with a tail-heavy V60. I actually have some tail weigh in mine.