Well I got the buggy out a few times to the track and I have been very pleased with the quality/durabilty of the Losi conversion. One thing that I am still having trouble with is motor temps, I again tried several pinions with my Eagle Tree hooked up and the lowest temps I got after 10 mins was 150 degrees which seemed on the warm side. So I decided to use a 47T spur which is closer to the stock buggy gearing (48T), instead of the Losi conversions 45T spur. This should give me a few more gearing options. I bascially had to open the hole in the plastic spacer a little bit and grind off a little area under the spacer (there is already a milled out area under the plastic spacer).
Using a Robinson Racing wide gear which is easier on the pinions because they are slighty wider and have more surface area.
Hard to see, but I opened up the hole in the plastic spacer and milled out a small area under the spacer.