Gear grind after fluid change

TrailBeast said

A lot of people don't take into account the fact that the fluid differences cause a different drag on the gear to shaft mating surfaces, and not just how the syncros work or don't.
Meaning if the gear itself resists stopping with one fluid over the other.

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this is what I have been reading. The slight grind going into third is much easier to feel since changing the fluid. I would have to really be flying through the gears before with the typical gear oil that was in the transmission. With the shock proof it happens at the easiest of shifts so it totally has something to do with the fluid. The redline mt90 is a thicker viscosity and has less EP additives so in theory it should make a difference. That being said, I could always try and mix a quart of gear oil in the shock proof and see if it improves it before I waste a bunch of money and time swapping fluids completely out...