Sounds good, if your choke is the shutter or flapper type that closes the air intake, you can see if it is all the way off. If it is an enrichener type, it has a rubber tip which allows more gas to flow and can leak even when closed.
If the float is easy to get to, you may want to give it a shake just to make sure it is empty, also, make sure the float is not loose on the needle, allowing it to rise up on the needle.
Bye the way, I don't remember from the original thread if this problem came on all at once or was a gradual thing.
A good quick test on whether you are really fighting a too rich problem is to get up to max speed, then turn off the gas, as the level drops in the carb, you will accellerate a bit, just before it dies, if you are too rich.
It's only an engine : )