Pappy mine's a 2x2. The skinnier hardwood ones, are easier to get the string in and out of the grooves.
Jawge is just looking out for me. In fact, since he's someone who's requently advising newbies who are usually working on less than optimal stuff (or just plain junk and I don't understand that since jawge tells how to select a decent board), I can understand the advice to avoid the tillering stick. Having a bow fail at that early stage, is just something I don't have happen since I don't work on questionable boards. Life's too short to make tomato stakes the hard way.