Hey guys.. I'm going to be shooting at the beach in some very glary and bright conditions. I have a circular polarizing filter that I will have on for most of the day.. but I wasn't sure if I should have my ND filter (1st level) on as well (the one on the A1). What do you guys think... should I use both the 1st ND and CPL filter? Thanks for your advice.

not a problem. i use the built-in nd and a filter, including a polarizer, up front quite often. you might run into problems if you try stacking screw-on type filters, which will lead to vignetting at some point.