I am quite new to Flite Test planes and still relatively new to the fixed wing hobby. I received the Nutball, Flyer, and Delta 3 pack for Christmas and was wondering which power pack i should get. I am thinking that in the future I will be buying more swappable planes. That being said I do not have a lot of money to work with so i will only be able to build 1 maybe 2 power pods.Which would you recommend that would work well across multiple swappable planes? Thank you so much for the help.