Yes, check the neck angle. The angle on both DarkMarks and my ES-3 was too shallow and the bridge sits too high for a god action. It's not an easy task to adjust the angle as you have to chisel away at the neck join. The only real alternative to adjusting the angle if it is too small so there's not enough height at the bridge location (if you run a straight-edge along the neck), is to swap the bridge to a Göldo Lowrider bridge (if you can find one), which is substantially lower than a standard ABR-1 or Nashville style bridge.

Unfortunately they only come in chrome, and I fitted gold hardware to my ES-3, so I'm currently stuck with a less than ideal set-up. You'll also need adapter posts, as the Göldo uses a 4mm post and the kit inserts are 8mm threads.