ORIGINAL: wind junkie
I've thought long and hard about maybe getting a DX8 to replace or supplement any of my three 9303s. Mostly cause I'd like to dabble in telemetry.
I would miss the dedicated full house glider programs : Crow activated proportionally from the throttle stick with built in elevator compensation and offset capability, snap flap for entire wing TE movement. These would eat up many of the mixes if I tried to manually do it all with a DX8.
I absolutely love the rotary sliders in the corners (like the old airtronics Vision) because my index fingers can find them quickly for camber positioning on gliders when entering or exiting thermals without taking my thumbs off the sticks.
As a glider flyer AND wet fuel power flyer a slider is used on my giant scale warbird flaps. It makes a huge difference being able to quickly slam the flaps up on my big warbird to get the tail down quickly on soft wet or muddy fields to prevent nose-overs and still keeping throttle, rudder and elevator control in a gusty crosswind. Can't do that unless my index finger can find that flap slider!
Thirdly, I really don't like digital trims on throttles, and the 9303 has a manual throttle trim. (Yippiee!)
So, in summary, if I needed to replace one of my 9303s, I'd get a 9503 and NOT a DX8. I'd get an aftermarket suite of telemetry tools like Eagletree or similar if I want telemetry. Having them integrated into the TX isn't really a big deal, cause I've concluded I can't really view them while flying, and any alerts I set (low voltage, temperature, speed, rpm, etc) could also be done without the TX's involvement.