Anyone know anything about the quality of Home Depot's 3/4 inch solid core birch plywood? Local place has it on sale for 40 bucks. Its regularly 70 dollars. I've never seen solid core pw before and this looked a little suspicious to me. The core seemed to be built of small lengths of wood laid side by side and end to end. There were some small gaps (1/8 inch or so) along the long edge where two pieces of wood did not meet where they abutted end to end. Is that normal for solid core pw? It was stamped "made in Ecuador". Never saw it there before but I haven't been by for quite a while.