uncle scotty's cocktail with superlight?

[RUrunning]

well, it all started when i went to the local subaru dealership for a trans/diff drain and refill. they carried the oem fluid, so i figured i couldn't go wrong. but apparently, it's some new semi-synthetic that costs almost $29/quart, so yeah... eff taht! they couldn't quote me at less than $260. in fact, to be good sports, they actually called another local dealership, and got me a quote from them while i was standing right there. they carried some oil that's a little over $8/quart, but for some reason, they STILL couldn't beat the price of $260...

anyways, i went out and got a two-ton jack/jack-stand/creeper kit and some funnels. i figured if i couldn't get oem fluid, then uncle scotty's cocktail was my next best bet. however, i am trying to get this done for saturday's streets of willow track day, and after trackin down the synchromesh and hypoyd, all i could find for the shockproof was superlight.

has anyone used the superlight in the cocktail? how does it compare? will it affect the amount of time before i have to change it out? i know the regular cocktail is every 15-20k to keep it like buttah . any feedback is appreciated.

thanks,
kevin