Recently we've had threads on How to fine-tune servo operation for turnout control and on Enhancing HO scale turnouts with magnetic point locking.

I was wondering if it might be worthwhile to use the magnet turnout locking technique on servo-controlled turnouts. I thought maybe it would simplify tuning as the servo would just need to get the throw bar close enough to the right position for the magnets to take over. There'd be no servo problems with servo buzzing due to the servo trying to throw too far, and no problems with derailments due to the servo not throwing far enough.

Has anyone tried it? Or does everyone feel that the tuning problem is not that much of a hassle to overcome and the magnets wouldn't be worth the hassle of installing?

Having not used servos, I'm also wondering whether over time they need to be re-tuned?