The best putter in the game is Stevie Rico. he doesn't jump, it's a lunge. I've started to pattern my longer putts after this guy. I lean back on my back foot and push off it straight at the link I'm aiming for. This gives me plenty of power without the confusion created by jumping. My crazy legs cant take it, and I rarely make jumpers. But I do make step throughs and lunges.
Scott, as far as your upshots go you only have to remember one thing, it's easier to throw with touch if you use your whole body. If you try and arm it, or aim it, typically it will come up short, or you will fear coming up short and put too much on it or yank it. Micah Dorius taught me this at USDGC on hole 17. We were there for a couple hours trying to dial in that shot...250 downhill, haybales, can't go long (water) can't come up short...you really have to dial it in. I only missed it once (in the tournament, probably 50 in practice), and it was due to not following through with my body. That next shot was nerve wracking, but I immediately knew what I did wrong, and corrected it, using my body for follow through...I mean, you need to follow through on everyshot, but especially on touch shots.
I had this in my head a couple weeks ago at the peninsula and I was so close on all my upshots, I thought for sure I was going to put one in outside 100, but that didn't happen, however I was close to the basket so I didn't have to embarrass myself with putting.