I do not see how mine could be more consistent. All my friends run chevy's with a glide and they complain because mine runs the same thing down to the hundredths and theirs don't. And they say a stock glide will not hold up with any power.
Stock glide may not hold up to any power if it has a factory 1.82 first gear. They were pressed together. The 1.76 gear glides will hold up to a lot of abuse, as they are made different.
I'm not trying to make anyone switch. Just putting the info out there.
There are 3 speed cars that are consistent. My Volare wagon has a 904 and ran five 7.13's in a row the other night in a two hour period. However, I think some of that has to do with having 3.73 gears and all the good weight transfer of a wagon.
How about if I put it like this.
As a general rule, The glide is more consistent, but there are exceptions.
