Rusty, very nice build thread. Thanks for taking the time to share your experience with us. A real pretty Ultimate, ready to maiden. Also, I was impressed with the Flying Giants web site, cool.

I have been using lipos in my 50cc gassers for a year and a half, with absolutely no problems. I'm presently using a 1320 mah & a 1900 mah (redundant) on the rx, and a 1320 mah on the ignition. I get 6 flights on them, & at the end the rx batts are still at 7.8 v, & the ign batt is at 7.6v. I guess I could stretch them a couple more flights, but I'm happy with my routine.

I think you'll be happy with your Ultimate @ 16.7 lbs. It should be real solid, with plenty of power. Looking forward to the flight report.