Cajun - you have the MM 25 right? Is there a dataport for the Castlelink on it? That RC18 I bought has the esc mounted down in a tight spot so I can't really tell and didn't want to take it out if not.
No, I thought it came with one but you have to buy a separate "link" that plugs into an open slot in the same reciever as the ESC and you program it that way for the Mamba 25.
http://www.castlecreations.com/products/castle_link.htmlThe Mamba
Max has it built in. I'm going to buy one eventually, I want to be able to control the throttle curve more than anything.