I'm using the mic keys to bring up the radio also.
I did the same thing using phonetics instead of spelling it right. For the F keys, I used "eff", as in eff one, eff two, etc. I'm getting 98% accuracy and have the confidence level set at 95%.
For RTB, I used "are tee bee", AWAC's is "A Whacks, JTAC is "Jay Tack", etc.
I only put the F (eff keys), in as a backup in case of flub ups or I need to go back, ie "eff eleven".
For the ATC, I have one command, "Tower", that sends the first F5 command, that pops up the list of closest towers, then have all separate commands for the next command. So if I want to land at the 3rd one in the list, say "three inbound", and it will send the appropriate F3 command.
Did the same thing with Tanker and JTAC, since sometimes there is more than 1 in a mission.
For the wingman commands I went with the full sentence, so if I say "Wingman are tee bee", it sends F1, F1, F2, or "Wingman engage air defenses", would be F1, F2, F4.
It's been working really well and I'm quickly becoming addicted to it and constantly expanding on it.