CA hinges are all I use.
Radio South 1/4 scale CA hinges are great! I use them (usually installed 'sideways' for more hinge length) on all my planes - including 2M pattern planes and 1/4 scale IMAC stuff. No problems ever so far. (1000+ flights logged...)

(techniques below courtesy of a much smarter builder than I...)

They're easy to install -- I use lots on each surface - 4-6 on a rudder or an elev half, 7 or more on an aileron --

Binding? Keep the hinge lines *straight * and they won't bind or break
Vibration in the hinge line? Keep the hinge gap to <1/32" and there won't be much room for vibes...
Stiffness?
-- After installing them and putting the thin CA in, I use a corner of a paper towel in the fully deflected surface to wick out the excess CA
-- During the few minutes it takes for the glue to set completely, I flex the surface back and forth thru its entire range of motion to prevent remaining CA from hardening in the hinge gap.