hi mate,
i used to do tree surgery a few years back,and logging in the winters,and over that time ive seen many a differant types of saws,but the best saws on the market are husquavas,reliable,smooth,and consistent power,with chainsaws you can buy what i call a farmers saw which is a saw you use now and then,or a professional saw which you use every day,
keep the chain sharp,make shaw the woods clean before you cut it,and dont cut through the wood and dip the saw into the ground.
tl