I think I must be one of the few who also doesn't like holding the L button to target. I think it has something to do with navigating the analogue stick while holding it down. That, along with the way you have to hold the 3DS still (keep in mind that you want to keep it still for the 3D effect) perhaps made it a little awkward for me.
Took 5 seconds to fix this problem though, just go to the options and turning "hold" off.
Took 5 seconds to fix this problem though, just go to the options and turning "hold" off.