im looking to start a tree trimming/cutting business, and want to invest in something that can handle atleast a 25" bar.. I currently have a 290 and would like to stick with stihl because I had a 450 e series husky and this 290 is just way nicer to me... but it does seem like a lot of professionals around here use a 372... and I guess im wondering if the 562 is even in this class, my dealer is telling me its the way to go, and its $250 cheaper than the 461..
I can't speak for the 461 personally as I've never used one. I have a 372 and a 562, though my 562 isn't broken in yet, so I'm reserving judgement on it too. I have owned a 660 and played with some 440/460's and others. Basically some more info is needed before rendering an informed opinion.
1. What type(s) of wood will you be routinely be cutting?
2. What bar length(s) do you want to run and which will be the primary length?
3. Are you only doing ground work, or are you planning on climbing too?
I do some cleanup jobs from time to time and am a decent firewood hack. I will always love cutting wood, but to make a small fortune you have to start with an enormous fortune. The rates are lousy, the insurance premiums can be nasty and people have no appreciation of the effort and knowledge that goes into doing a complicated job, cleanly. The wood I sell makes about enough money to cover the wood I burn to heat my house. If I factored labor into it, I'd be in the red before I ever sold a stick. I'm not trying to discourage you, rather just making sure that you're not about to ruin your finances and/or get sued over delusions of riches.
The 290 is a fair firewood saw. I don't blame you for not being a fan of the 450. You'd be surprised what you could do with a pro-grade 50cc/70cc saw combo as that covers a fair amount of the cutting needs for many.
If you're primarily wanting to run a 25" bar in softwood, the 562 will likely do well for you but a 20" might run better. Alternatively, you might also look at a Sithl MS440/441 or a Dolmar (or Makita branded version)6400/10. In hardwoods, (Oak, Hedge, Mulberry, Ash, Hackleberry, etc), or if you would like the ability to pull a 28" bar, you'll want the Stihl MS441 or 461, Dolmar 7900, Husqvarna 372xp, 576xpAT or 385XP. These saws have more displacement and better oilers. They're also heavier and equal to or more expensive than a 562, but are vastly more suitable to the task at hand and more solidly built. I have a 28" bar that I run on my 372, but even being ported, it's a hard pull in Oak, Hedge and Locust. It's also biggest option that I have right now so it'll have to do. On the coasts or in areas of dense conifers, you can do more with less. In the mid-west, we tend to run large motors relative to the bar length due to the demands of the wood. I'm not trying to suggest that you need a 3120 to sever a twig, but it's always nice to have a saw with a bit more capability than you need.
To give you a bit of context for my statement, the 4 working saws in my sig line are normally outfitted and used as follows:
Husqvarna 372xp: 20-28" bars, at least until I pick up a 395 Husky then I'll stick with a 24" bar as that would be ideal for that saw.
Makita (Dolmar) 6401: 20" bar - very well balanced combo. If I ever drop a 7900 piston and cylinder on it, it'll likely wear 24" bar with the ability to run a 28"
Husqvarna 562XPAT: 20" bar - a bit anemic at the moment but it's breaking in. an 18" bar might be perfect, but I'll probably stick with a 20"
Stihl MS261: 16" bar running .050-3/8" chain. If I ran .325 I'd probably bump it up to an 18" bar, but I like not having to sort by loop size AND pitch and a 16" bar balances nicely.
I apologize for being long-winded, but I'd like to see you be happy with the ultimate decision(s) you make after parting with money. Buyer's remorse is a P.I.T.A. If you're honest with yourself about what you ultimately want to accomplish, size your saws accordingly and you'll be pretty happy. Good luck and safe sawing!