More or less the same as I do. Funny I've stopped having any practice puts over the ball. Seems to improve the concentration for me.
hmm I used to do that and was an excellent putter, miss a couple and doubt creeps in so take practice swings to minimise the risk....then miss it.
Might go back to that as it worked really well for me.
Remember Mickelson also did it for a few months and it worked very well for him also.