@mal_tsla
EDIT - Just had a realization... If you lift sooner and regen longer you would save slightly more energy overall cause you wouldn't be using battery to propel the vehicle.
Thoughts...
You're getting the hang of it now. It really depends on the driving scenario.
Don't think of regen as a method to "charge up", it's a method to consume less by scavenging what you were about to waste.
It's compensating for your error and making the best of a bad situation: having to slow down. EVs love to roll.
Avoiding getting into positions of waste makes you a more aware and better EV driver, maybe even a graduated hypermiler!
Don't worry about packing power back into battery. Think about using less in the first place.
So you have to stop, eh? Shucks. Here's how I'd rank power use efficiency.
Scenario: City driving, regen on standard setting, as soon as you see or realize an imminent stop is needed ahead.
In order of efficiency (from least to most efficient):
1. move foot from accel to brake at last possible moment to make a comfortable stop. I bite my lip when my wife is driving and she's does this.
2. begin gliding (gear to N position) move foot to brake increasing pressure to stop the roll
3. if you have the space ease up on accel and begin regen at a pace that will see you come to almost a complete stop, then brake to stop
4. if you don't think you have space immediately full regen... if it turns out you did have a little more space and are going to agonizingly come up a bit short of the stopping point, glide it out (see 2) so you come to natural stop with no brake at the stopping point. Take a bow.
Not all driving scenarios support all options. For the scenario above most people are going to (3). Trying to (4) would become a royal pain for city.
For other driving scenarios, do different things. For example, for highway cruising... I set regen to LOW and really really try to avoid decelerating, favoring inertia of the car to cover ground as the best use of energy. Keep the power gauge out of the green zone.
I do not want to put any fuel back into the pack if I can get the rolling distance out of what I've already added as inertial potential to the car. I do find myself flicking gear into N on the highway to glide instead of regen down medium hills... gaining speed for free. ... blah blah we're getting into hypermiling.