as someone who decided (after 20 years with a Slotline blade) to switch to an Odyssey two ball fang, toe hang....
the main difference I notice is that the two balls help me align my short putts faster, and better :)
not sure about all the other details, but I agree with Patch's tips and have tried them.
I'd suggest practicing with some alignment sticks, too. double check that what you see as the correct line,
is actually the proper line on the green.
Now there's a speed of play idea! Let golfers roll carts across the green... shortest distance between two points. I'm serious, not being a smart ass. Rolling through bunkers... no. There's a nearby course where management doesn't even blink an eye when you roll your push cart across the tee boxes. Personally, I'm reluctant to even let a cart wheel encroach on the fringe. I think I got yelled at once for that.