I like trufuel in my climb saw, usually put supreme mix in my larger saws. I had issues with the climb saw hard starting and lacking power, the reason I went to trufuel, helped a bit, but the saw needed a good cleaning and seafoam through the carb. Seems to work now.
Single stem removal I'll use my HH in DdRT set up, spur up with a flipline and the HH. Simple choke with the HH, flipline in place and cut limbs, top the spar to where I can drop it, DdRT down, use the climb line to pull up a bull line, drop the spar.
In my case my GF's ex stalked me, even paid someone to follow me for at least 60 days, no really. Gf's ex is a cop, just trying to get out of paying support. I got to read 60 days of my boring life, but hey, people pay to watch me so I must be something! Probably has years and years of videos of...
With exchange of course and some shipping. I usually buy from Brampton, London didn't have much in stock. Vermeer has been better to deal with lately, not saying prices are great, but understandable.