Hello all. Let me say upfront that I am a total amateur when it comes to woodworking so my questions may seem naive. I do a lot of DIY projects around the house, but not much building things with wood -- until i got my Kreg Jig! I have become obsessed with Kreg tools. I have the Kreg Jig and just bought the Push Stick, Square Cut, Multi-Mark and Featherboard from Lowes.
So here's my problem. I am making a closet organizer (will have some drawers and shelves) using 3/4 and 1/2 birch ply. 3/4" for the main structures and 1/2" for the drawers. I am putting some "boxes" together using the 3/4" ply. I set the Kreg jig up for 3/4" material and am using the recommended pocket screw length of 1 1/4". I noticed in several -- if not most -- instances that the screw heads popped through when joining 2 pieces of 3/4" ply at a 90 degree angle.
I noticed that the ply is shy of a true 3/4" by a hair over 1/32 which I believe is "normal" (or is it?). Could this be the primary reason why? Should I use a shorter screw like the 1". Or perhaps I am driving the screws too hard (but I didn't feel like I was)? I am stopping when I see the joint pull tight. Could I be missing something or doing something wrong in setting the depth on the Jig or on the drill bit collar?
I appreciate any help that anyone can provide.