Mystic x645 any good?

[srislash]

The M445 would put less load on the system as you are running 4s1p.If the current flex is in good shape stick with it and try a M445.It won't be any faster but will extend run time.

[Megabiker98]

Alright I'll do the prop then, my flex shaft has only been used 3-4 runs at most! I haven't had much of a running season yet! :/

[highflyerbill]

Remember you must balance and sharpen your props .