I have the 495. Bought it earlier this year, upgrading from my trustee "pilot III"....
I love the 495...only bad thing is...using the rocker key with gloves, (on fires only---rest of the time I do not wear them), it can be tough. Other than that, I cannot believe I went for so long with out one. I pull it out every night and re-charge it...I have my own mount, so I can take it to any of our aircraft and install it in about 2 minutes. I have it all set up the way I like it with respect to map screens etc.
I like the track function...am able to download tracks to my laptop and give to fire managers right away. Also by zooming all the way in to 500 ft range I can fly either concentric circles or use it to fly a grid.
Have no experience with the 500....feel free to pm me or ask on here if you have further questions.
