@Akaihebi, I don't think you should say "it's ok if it's not completely dry", remember my case… I really think you should clean it perfectly, I bought from a chinese store a very tiny microfiber cloth, with which just using your finger it gets anywhere, so try to find one. You could also try to sew "the fingers" in a tutorial made here on this board.
As for tightness, my first onahole, Smooth & Flat Girl's Laboratory
http://en-nls.com/pict1-28466?c2=9999 is VERY tight, I really like it, but mine broke on the top, so yeah, after some months it may break for you too, but it's worth it.