Can this work? I tried setting up a SRAM Rival double FD with a SRAM XX 42/28T double crankset and while there is enough swing for the mech to reach both rings if the limit screws are set right, the double tap shifter's pull doesn't seem to be enough-- shifting can't get the chain off the small ring. Is this a typical incompatibility between SRAM road and mtn comps?

If I replace the Rival FD with a X7/X9/X0/etc will that solve the problem? Will it be compatible with the doubletap shifter? I'm new to SRAM and was under the impression that their road and mtn groups were mostly interchangeable.

Also, the front doubletap shifter is really hard to activate and makes a violent bang when releasing cable tension (moving toward the small ring). The rear shifter feels as I would suspect, similar in force and feel to Shimano. Is this normal?