Its now RTR, but at 4lbs...[:@][:'(] But it balances perfectly, and I think it will run out okay.... hopefully..
If its not raining tomorrow morning, I'll do a maiden run. It rained all afternoon today, so no trip to the pond. I had to shift the engine forward a little more than I originally anticipated because I originally balanced it out with a 7oz fuel tank. I replaced the 7oz with a 4oz tank which should give me about 10-12 minutes of runtime at WOT.