Queensland Question On Paper And Watermarks?

I'm picking up some Queensland stamps for a collection. I've noticed though the subtle differences in watermarks Q & Crown and paper. Some of the stamps have a machine made look and several others have a soft and uneven wove look. The first 2 are the latter paper. They also show poor perfs. Does SG list any notes concerning papers used on these stamps? Also the 2d is missing part of the right frame design. Is there anything listed about that? Is the QL postmark common? I'm collecting used ones at this time and looking for better postmarks.