I recently upgraded my transmission a week ago and thought I'd share this on HT.
What I did to mine after installing a Spoon LSD and Spoon 5.1 FD and all the DC5R main/counter/differential/transmission bearings and oil seals was putting in a Honda MTF which in case not a recommended oil for having an LSD in on a DC5 so I ran it for 150 miles and also did the figure 8 (20x each way on full lock) and circles then drained it had it oil changed to Royal Purple 75W90. I noticed that there was lesser noise than it was on the first 150 miles which was absolutely satisfying. Now, I'm waiting for another 500 miles before having it oil changed again to Motul Gear FF Competition 75W140 and do the figure 8 and circles again on the recommended speed before tracking it next month. I believe one track day would be a great way to break in the LSD and the FD then have it oil changed afterwards. I'd consider Kaaz Gear Oil 80w90 and see how it responds on tight turns.

 

Wish I could upload photos on here but we all know the issues of Photobucket recently.

 

Use Imgur.