I have the Aker 10W and iCOMM combo with the PTT cable. I only use the PTT cable to set the static burst I want and/or need for the troop. I also added a small MP3 player and run the 501st TK trooper loop through the amp, along with my voice calls. Basically, when I'm ready to talk...I kind of "thump" the mic or give it a little tap to get the 1st burst, then talk, then the final burst happens automatically. I practiced with it for a while until it made sense and sounded good.
My first troop with it was totally cool. The people I interacted with really dug the whole "static thing" and I heard tons of comments like "gosh, he really sounds like a Stormtrooper too!"