In view of the phrase "gear is great" this non-pro will add some history relative "knowing it all when mid-20's".
When 28 (1974) , normal day job was at an aerospace desk and moonlighted clearing a road with my old D2 cat. Had pulled hundreds of 20" plus alder down and 20 or so 24" and larger fir - D2 not big enough to push out the root balls - set a 3/4 wire rope choker at about 30 ft up and pulled'em over with pulley and 200 ft cable. All well and good, now I'm a smart young guy, etc., experienced, etc.........
So, D2 clutch went, had to remove FOPs to get to clutch. Big snowstorm New years '73, a few alders leaning toward my own house. Hadn't 'had time' to put FOPs back on, but hey, this smart ass kid knows what's up, old school and all and have pulled 70-80 trees over (wait make that 10,000) ..... - anyway, woke up a few days later and 37 separate skull fractures, but survived.
Recently had to drop a couple of 150ft plus cottonwood in Renton WA backyard that were posing a threat to grandkids play area - found this site and got great advice on rigging, backcuts, correct to take them down, etc. , -- non of the 'old school guesses' from you pros. Am even such a chicken wutz now (DW saw me get hit 30 years ago and insists) that cables even got tensioned from 170 feet away with remote control winch on 6 total 5/8 cables - no risk for this "old school till hurt bad" 'boy'.
Oh, yeah, even wutz enough also that DW wanted 'no climbing', so 70 ft high cable set by string over crotch with bow and arrow, followed by 1/8 WR which could pull the 5/8 wire rope.