I have to say I am surprised by the delay time. I don't find that at all.
I love the Regen on my Townie. Its dual wheel drive. I have front Regen at 30 percent and rear at 70 percent. I pretty much only use the Regen to stop. I rarely squeeze my brakes enough for my v-brakes to have any effect. I also love the fact that on the mp3 Regen works right down to zero KPH. I usually come to a complete stop with just Regen and then squeeze the v-brakes on full once I stop to avoid rolling on an up or downhill intersection. On the MP2 Regen would kick out just before you stop. That was annoying.
I always find it surprising when people say they have to have disk brakes and others MUST have hydrolic brakes. I find them completely unnecessary unless I need to real stop fast. Even then my V-brakes do the trick very well. My Townie with my trailer, Three batteries and my large tucus in the seat is over 400 pounds. Probably even closer to 500. Buy I assume I get such desirable results as its 2 wheel drive.
My Tri-drive mountain bike has disk brakes and I guess they work better, nothing I ever noticed though. I had to shut Regen off on the trailer motor as it just skidded all over the place when braking.
Even My Tandem has v-brakes, the rear motor with regen at 90 percent and it stops just fine with two riders.
My Cannibal however with almost zero weight on the front wheel is not good at all in bad weather with Regen. Front wheel slide is very easy. Its a fair weather bike only with Regen on the front wheel. When the weather is bad I just pull the plug on the front brake lever.
Just my 2 cents on Regen Braking.. And A cheap excuse to yet again post pictures of my ebikes. I love them all! I think I'll go hug them again right now!
Gary