No, I didn't think it necessary, and experience with my setup (.50 2-stroke) has confirmed that. A guy at my Club uses a YS .63 with no problems on a normal nylon mount.
I just use a small-capacity NiMh 4-cell pack (around 800mAh) for lightness, gives me 3 flights safely then recharge if required. I deliberately kept it simple, inexpensive and light and it WORKS!

Regards, Bill