I found an interesting note in one of the electric motorcycle forums a while back. The thrust of it was that the bike in question (a Zero) got better range using the Sport mode which, in part, uses much less regen than the Eco mode. I've been playing around with that concept on my bike and, although not a scientific test, think the original post was correct. I believe I am getting better range by not using regen and doing more coast down. So, my question for other Tesla owners out there is has anyone done a comparison between high and low regen to see which provides better overall efficiency? I do not have a regular commute (I do but I do it on my Zero) so it is not easy for me to do a back to back test. Does anyone out there use their MS for an 80 to 100 mile commute where they can alternate between lower and high regen levels to see which pays off? This also brings up a curiosity for me. I've noticed that the power consumption app does not go green until regen is in the very high range (stopping from a very high speed). Are the lower levels of regen where the graph does not show green providing any return?