The Thickness you speak of is there.
It Lowers metal to metal contact friction between the gears like No Other...
The rating shows it to be a 75/250 and the Little Loss until warmed is NO problem unless racing, then they use a light weight with shockproof.
A lot of 1/4 mile racers have shockproof in their tranny's, turning over the rear tire by hand, right before the run,,, Empty it out then do the "one 1/4 mile run empty". Shockproof sticks to every part and no damage is done in the 1/4 mile but the Drag of it is not there..
Yes, IF you race or do the 1/4 mile and want that fraction of less drag,,, there are solutionss when using the Best... Redline...
Now that sounded like a commercial. No I have just used their products for years and many HD's.
I Buy the product just like you BUT like to share the information I feel and know about Redline.
The little given up by the thickness is WORTH the time to get it luke warm where it doesn't drag much. YES cold it is a little thicker but Lubes the best of any I have seen.
My Take on it
signed....BUBBIE