I got a tip from a player on the range at the NJ state open years ago about slighting rising my hand position at address. He advised me to get a little taller in the set up. The guy is technically a pro, but he's also a very fine player. He finished in the top 10 in the masters a couple times in the 80's. I missed the cut by a few strokes that year because i putted poorly, but man was i striping the ball.
I typically don't think much about mechanics much, but that was a tip i still focus on to this day. When my hands fall too low my swing gets a bit narrow.
Over a single round my best streak is 5 strait birdies on holes 11-15 at burlington cc in jersey. Its the hardest stretch of holes at that particular course, too. I one putted every green on that nine. I didn't break par in that round though, i remember hooking two strait balls OB on a short par 5. I think i shot 73 that day. Ive had several 3 hole birdie runs since then but never 4 or 5 in a row.