Two years back I was helping a tree removal company knock down a big elm tree. The climber was up high using a top handle saw to trim off the high branches. He finally got down to where he had to remove some of the trunk that was 40 feet up before they could drop it. He yelled to the boss, "This top handle saw is a toy. Give me a saw with guts that I can use to get the job done."
I said to the boss, "Let him try this one." I gave the boss my Stihl MS 361 with a sharp chain and they hoisted it up on a rope. I was a bit nervous, to say the least, but the next larger saw that they had was an 046 Mag with a 32" bar on board that they were planning to use for the final drop.
He started it, ran it, and yelled back, "Now that is one helluva chain saw! Holy Toledo!"
The climber and the staff took the rest of the tree down with my 361. Nuff said.