I have been expading my fleet of aircraft with my tactic system by buying recievers for each model. I now realize I want a Tx that has model memory for trim, etc. as well as mixing capabilities for a sailplane (flaperons). Tactic offers nothing like this. Is it possable to use another brand Tx like Futaba, or do I need all new recievers?

If your Tactic receivers are the 2.4 GHz SLT type, then you just need to purchase the AnyLink transmitter module. Here's the website:

http://www.tacticrc.com/tacj2000.html