Hey! Hope I can help you out! I work for Flux... so I may be biased... but the TT's are some of the comfiest bindings out there. The TT's are an outstretch of the dated Flux 'Titans.' The TT has been our most popular binding for years for a reason. The TT is an all mountain binding with a mid-flex. It is not the softest in our line up, it is not the stiffest in our line up, its not the lightest, but it is everything you need. New Flux team rider Tyler Lynch uses it, and this year we collaborated with him to bring TT's to his homies--GBP!
I've never ridden the Ride Delta, but to my knowledge... it has a responsive highback. The TT will give you response in the highback for edge to edge turns and quicknees for tweaking tricks
Let me know if you have any Flux questions! Hope to help ya out!