Sorry for another "noob" question, but I have a day off tomorrow and my FIL called me asking if I wanted to come down and cut wood w/ him tomorrow. One of the fir we decked for firewood last week has a nice straight section that's about 26" dia and he wants to do a head-to-head pitting his 2171 against my new 7900. I currently only have oregon full skip and full comp chains in my tool box and was curious what you guys thought would be faster in this situation?? We're both running 28" bars and the wood is dead/dry doug fir that will just about bury the bar. Both chains have the rakers down .03" and are freshly sharpened. I've cut the same wood w/ both chains (although not close enough together to notice the speed diff) and the 7900 won't bog w/ either unless you really stand on the dogs.