mamba max replacment

Thanks guys for your help.I didn't know they had 3 version of the mmm,i thought the one
i had was one.I gave castle a call yesterday and they got me straight.I was totally confuse about this.I feel a little stupid about this,still new to all this brushless thing.I AM
still learning ,but i think i will learn alot from you guys here you guys are the expert"s!
Again thanks for all you support!