It doesn't get real hot very often here in my part of WA, even summertime temps rarely break 90 for more than a few days. When it does get 80+, I find I usually only need ~1/2 choke to get a quick and easy startup, the rest of the time, it's full choke to get her lit, followed by a quick trim-down to 1/2-3/4 depending on the day's conditions... this is to get her to idle at 2000 rpm (like the owners manual says). I then go thru my routine of inserting earplugs, donning the skid lid, then the gloves while it warms a little, turning the choke down during the process to keep the idle near 2000 rpm. By the time I'm ready to ride off, the choke is nearly shut off. I ride off like this and after the 2nd stop sign from my house (~1/4 mile), I turn it off completely. If it's cool out, she'll still hesitate a little if the throttle is whacked right after the choke is shut off, but I don't have another traffic control for ~10 miles, and she's always golden within 1 1/2 miles, no matter how cold it is out.
I've read many posts from folks in warmer climes that don't have to use any choke at all in the summer, even on bone stock bikes, but mine has always liked at least some, no matter how hot it is when the engine has sat long enough to be considered 'cold.'