I like the Titans on my boats but my boats are not that big. I have never used them on larger boats. Realistically unless it is a calm daysail your not turning the boat around and finding a float winch handle.
As for leaving the handles in the winches. It depends on the winch and handle...
"Zero in common" is a bit of an overstatement. The Bounty II was commissioned by Coleman as a follow up to the original Bounty that they also commissioned. 20 plus years had passed and Rhodes certainly had new concepts. So an "Evolution" of sorts. Also The Bounty was the first large sailing...