As diameter limit grows near, stroke length of a triangle frame shortens to the point of near uselessness.
OK, yes that's true. Good thing in Communist America you have choices, for a while more anyway. I think it's a clever saw and apparently there's enough other fools to keep them in business.
It seems like a lot easier cutting firewood with any of them than with a handheld Sawzall blade.
I 100% agree an Esker is an improvement in all ways except in size and weight. It's done the job since Moses first started chasing beavers for their pelts in the New World. They're obviously not cheap but $150ish for them isn't unreasonable for the quality. They're real nice tools.
Esker Tools are designed and manufactured in Canada, using the best materials and production methods to ensure the functionality and durability to last a lifetime of service in the outdoors. Rigorously field tested. Meticulously manufactured.
eskeroutdoors.ca
So maybe the ideal is a 21" Tuff Saw? Never tried one so can't say. Seems like it would be fine. It costs $20 more than a Sven but looks like you could fabricate your own copy. The 21" has a 7" cut space so I'd imagine it bests the 21" Sven on logs >4" without too much question. The option to get one for 24" or 30" blades is nice, longer running length helps, too.
The downside is trying to fit it in to trim off closely spaced branches. I guess having several types, a quiver of saws in a waxed canvas roll, could be #OLAF.
The “Tuff” Folding Camp Saw by Spring Creek Manufacturing is the most durable, lightweight, and easy to use folding bow saw on the market. Made in the USA
www.springcreek.com