I use the small grip puppies as recommended by California Sport Touring. Not sure if the large cruiser size would be a tight fit, never tried them??? I wonder if they stay put?
+1 on the small size, and Cal Sport Touring.
When I first put them on it felt weird. My hands aren't that big, and it felt like I was holding a beer can in my hand at first. Once I got used to them, I found that I liked them more, my hands don't cramp up, and there's less noticeable buzz in the grips. And the heated grips still heat. And the Throttlemeister and Crampbuster still fit/work.
Easy install (I used Ru-glyde tire lube from NAPA (since I was spooning on a rear tire the same day I put the Grip Puppies on) and it is the cat's ass), inexpensive and easy to get rid of if and when I decide I don't like 'em. Haven't used 'em wet yet, but I suspect that turning on the heater will dry them out pretty quick.
Hope this helps,
Griff