Yes i did none of that ,with the width of the bar ,i do not see how it could help for as much time as it takes to mod a chain like that ,lighter is only advantage i can see to help the power of the saw
I believe it's from the wood. The plastic pieces don't usually rub much unless a chain jumps off the bar. Either way it's friction on the chain.
i just typed "race chain " in google that was in top 10 under images found this thread too ,most of those guys are long gone from sharing info now though http://www.arboristsite.com/community/threads/race-chain.148804/page-9
Gotta love some of those old threads. A few things have changed since then... The HP of the average GTG saw for one thing.. Too bad most of their pics are gone from that thread..
The best part is no one has told us we don't know anything and off the roll is best. If we could just get DC here that would be even better.