Stihl is a little more rigorous in what training they require as you said, but in this case you get the benefit of trained techs no matter what saw you buy.
I really like Stihl, but in this case for the money, I would go with the extra 10cc of saw. Both will do what you need, but you can only push a small saw so far before you wish it was bigger. I cut several tri-axle loads with a 50cc saw, it just took a while.
I still say go 590, and see if the dealer will cut you a break if you buy another bar/chain for it. an 18" makes it lighter, and keeps the nose out of trouble for you.
Whatever you decide, we like pics!
I really like Stihl, but in this case for the money, I would go with the extra 10cc of saw. Both will do what you need, but you can only push a small saw so far before you wish it was bigger. I cut several tri-axle loads with a 50cc saw, it just took a while.
I still say go 590, and see if the dealer will cut you a break if you buy another bar/chain for it. an 18" makes it lighter, and keeps the nose out of trouble for you.
Whatever you decide, we like pics!