I'll still fly my AR6100 & AR6100e receivers in the park flyers they are in, not planning to pull them and replace them. I'm just saying when it comes time to by another receiver for another park flyer, I'll most likely spend $10 more for an AR500 instead of buying another AR6100.

The only problem I've ever had with a plane using a 6100 receiver was with one of my Styrkers. The plane range checked fine, and had 30+ flights on it with no problems. Then one day at the field (this time with a few other 2.4GHz pilots flying), during my 3rd flight that day, I flew 3-4mins and then had no control whatsoever. It nosed into the corn and broke into about four pieces! I recovered all the pieces, glued them back together, and now it flies just as it did before w/o even having to trim it out! But I digress. The battery, receiver, servos, and motor all checked out fine after the crash, in fact I was wiggling the ailerons to help me locate the plane by sound in the corn field. After rebuilding and checking it over, it range checked fine, and I've flown it 6+ times since with no issues.

In this application (my Stryker), there is very little room for the ESC & receiver and they are right next to each other with the ESC & servo wires bundled up in between, so it's not the best environment for an RX with just two short antennas to begin with. An AR500 would let me get at least one antenna out of the electronics compartment so it would have less obstructions.