I have a MS250 with an 18" bar and it came with the RMC3 safty chain. I'm looking to by an extra chain and I was debating between the regular RMC and the RMC3 safty chain. I am doing trail clearing volunteer work and I am sometimes sawing several miles from the car/road. I was wondering if the regular RMC chain is worth the extra risk involved. I may sometimes buck tress that are wider than my bar. I don't use a saw everyday but I do understand what causes kickback. Thanks for any feedback.