Hand #1 - What is a good ratio for a blocking bet...am I betting to little in these spots? Can I be more certain of this hand if I bet the pot on the turn?

Hand #2 - should I even call the reraise on the flop...this is a very scary reraise for me and I don't think I can call anything else the rest of the way anyhow...so folding would be fine here...what can he reraise with here that I beat...not a lot. Should I be C/R in this spot or would a C/C be a better line here.

Hand #3 - screwed me up. I don't value bet enough which is something I have been trying to do more of, although I laugh at this, cause you have to value bet for a reason...not because you think you should do more of it. The call on the turn should have tipped me off, although the 4 pairing made me think I was good. I bet 20 on the river, he raised to 40 showing AK...