antone have grinding gowing into 2nd gear?

StealthZ

Has anyone else experianced any grinding going into second with the 6 MT?
As I have had this happen three times lately, and twice was under full acceleration.

The first two times I was ussing the regular Nissan oil in the transmission, and the last time it happend (full accerlation) was using Redline MT-85. I'm pretty sure the clutch was depressed fully as that is how I drive and try to never short stroke the clutch when shifting. So please don't ask about that.

On another note, I think I'm going to talk to one of my dealers because when I drained the trans. oil I only got about 2 1/2 qts out and filled up a little over 3 qts with the redline. Upon inspection of the drained fluid I found a ton of small brass shavings in the fluid... and not feeling to good about that. The car just turned over 6k miles Saterday when I did the fluid change.

Positive side is that the Redline MT-85 oil makes shifting feel a lot smoother.
Thanks.

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Past rides: '07 350Z San Marino blue, '09 370z Brilliant silver, '11 Evo X Phantom Black (felt like a brick but did anything) '13 BRZ Satin white (so much fun) now driving the dream.