Originally Posted by legarots
Does this hold the boat snug against the dock?
I am not sure how "snug" you want it. But in my experience it does hold it to the dock well. In a big blow, I would use a centre line tie.
BTW - this is a great method for two people. For too frequently I see some one step off (or worse jump off) with the breast lines. One line is all you need. If you are going into a marina other than own this also works very nicely.
One other thing for the OP, are you attaching to fender or two to the port side? That would help provide a cushion against the boat house.