I switched from 390 to cartel reflex (this coming from someone who usually avoids burton).
The 390 were pretty darned heavy and the ratchets handles stuck out so far, they'd sometimes get loosened by my pant leg or whatever else touched them. The plastic on mine was brittle and, on their first day, a tooth broke out of the forward lean ladders, rendering the entire flad useless.
At 175 lbs, I didn't feel any heel lift on the reflex...but I wasn't paying any attention to that, either (guess now I will). They felt good to me. The ratchets are perfect (no protrusions) and the bindings are super light.
btw, you can get cartels without reflex...at least, I know some 2011 cartel came without reflex