Hi David, if the Weatronic will be capable of 2 freq's operation in the future then it will also have my favour. It would be the best of the 3 systems. More compact, probably more goodies than the ACT DSL or DPSI stuff. Time will tell. I sincerly hope that the ACT module goes out and find it's market because it would bring tremendous added value. Imagine this module tight with a 2 freq's Weatronic unit ?? We hit the Graal !! In case that ACT module is finally available and the Weatronic unit would not be qualified for 2 freq's op's I would favor the DPSI-TWIN and last the ACT DSL system (depending the need for special programation like you says would ne neeed for complicated jets) What I like in the DPSI-TWIN is that it has his own "bad signal qualification process" and does not only rely on a RX failsafe to switch from one RX to the other RX. Imagine one RX fails completely so it won't have any failsafe signal outputs, then the DPSI-TWIN still recognize the failure and switch automatically to the other RX. It also uses the regular failsafe signal from any of the two RX for switching. For the ACT DSL system I dunno how it would react. See plenty of things to see and consider...

As for the TX thing, you can be assured that if a 2 freq's system is coming out only on a TX brand, there is no problem that this TX manufacturer is going to see his sale going stronger. I'm sure people would change TX just to have this feature.

Regards
Sk