I have used the reverser from Electrodynamics for years as well with no issues on 72 Mhz and 2.4 with no issues as well.

http://electrodynam.com/rc/EDR-106/index.shtml

And before anyone asks, yes i am affiliated with ED but am only their show help. I have been flying their stuff years before I started helping them at the Toledo show.

Their stuff works just works, no excuses, no workarounds, no add-ons, no runarounds, no hassle, plus the best after-sales service in the industry, no if's, and's, or but's, as it should be.