My most recent 100' lasted 4 years and I need a new roll now. I've always used full comp, that's the one that has one link between each tooth. I'm just wondering how y'all feel about semi comp, which has 2 links between each tooth. Full comp seems to perform very well but it requires more filing per chain given the greater number of teeth. Any input y'all have about full vs semi with regard to performance, speed, difference in tooth damage when hitting foreign object, would be appreciated. I cut mostly hardwoods.