I just received my openbuilds modular 1500x1500 table. I have it assembled, but I have not put a top on it yet. I was thinking I was going to do 1/2 mdf on top, but before I went to the store to get it, I wanted to get opinions on whether or not I should go with 3/4. I would like to keep the weight down, but if people have seen 1/2 being a detriment to working, then I will go with 3/4. Thanks!