All this is getting just a little too complicated!
I am currently running it with 2 batteries and 2 switches(something I picked up online).One battery Is mounted in the rear of the fuse,behind the wing.The front battery is almost right on the cg so taking it out won't change much
You need to take the battery on the CG out. It's dead weight. Doesn't make any sense that instead of moving the original battery back, you added a seperate battery. Get rid of the battery on the CG and the extra switch. Keep it simple! Just use the standard battery and set it up per the instructions.
The weight does not need to be INSIDE the tail. If you want to experiment by adding weight to the tail, just get some stick on weights and add a couple drops of CA and stick them on the tail as far back as you can get.
Go buy yourself an 11x4 and see what you think. Try an 11.5x4 for more thrust than both props. It will give you a very noticable increase in THRUST.
You don't want speed on that airplane, regardless of the aerobatic manuever. There will be enough speed with a prop with a pitch of 4. Going above that will give you no gain and just less braking for slowing down and downlines. Keep the pitch around 4.
I think it's your turn to go out and try some of these things now...
