Range Plunge With Modification

When charging to 90% before the lift I was getting about 264 miles of range. With no change in driving habits my range has dropped to about 208 miles. I viewed an almost identical conversion done by TC Custom on YouTube and they lost only about 30 miles in a road test. Also it seems with every charge I am losing more. Sure like the looks of the truck though.

Thankyou sameye4m. ( I work with the numbers my truck gives me and have never heard of a Guess-O-Meter ). The math I was using is this :
Was averaging 2.3 miles/kWh on a daily route, no change in driving habits, and dropped to just 1.9 miles/kWh after the modification.
On a 90% overnight recharge I was consistently getting about 267 miles of range. We are now down to just 205.
Only change I have made is the level and rubber. The 295 60's are 1" taller then the 275 60's. That I have accounted for as well.
Will see if I can find a comparison on the rolling resistance of the two tire sizes I am working with.

Thanks Voltz. Have done that.
Speedometer at 60 mph will GPS at 61.9

Thanks ChasingCoral. Yes, I adjusted by 3%.

Will live with that. Thanks sameye4m.

10-4 Leaf

Absolutely joelb1. Tiresize.com told me 112 pounds total. Regenerative braking aside, if I want to coast and bump the truck into neutral, those heavy tires will free-wheel forever with the inertia.