You can get away with the uregulated 5 cell pack for the ign. but i would use 1200 ma min. You do like to fly all day ?

As far as putting two packs in parrallel before the switch thats not a good idea. Anythig happens to either pak and one backfeads into the other . The better solution are the two regulated paks BAT-swtch-Reg-Rec or isolator. I perfer the i4c isolator to seperate the rec. power from the servo power. When using regulators in parrallel be sure to let your supplier know so they can give you a matched set.
My personal favorite are the fromeco adjustable regulators be sure to have a good meter to set them up with. In my 40 % i run the i4c setup with one receiver and fromec regs and bats and it works flawlessly. I have in the past run parallel batery paks and it cost me a plane. I also have had a servo pull down the power bus and put my rec. in bat fail safe,another lost plane. Don't get to cheap it might just end up costing you big.



Tony Fandino
Merry christmas