Thank you for all of your replies.
The controller operates perfectly for my needs. I ride a lot of slippy, loose gravel trails, and would find huge power dumps dangerous.
The throttle works as smooth as butter, which is a credit to Paul, as I've read that he has tweaked his controller over the years.
I'm gonna get myself a Cycle Analogger, plus a controller programming cable, so I can learn more about the characteristics of the set-up.
I don't need to change the parameters of the controller software, just interested what the settings are.
Then maybe I can post them on here for others to peruse.
Funny thing this electric bike business. The more you play, the more you want to know the finer details