Sorry , but I consider that 019T a huge joke. Heavy, bulky, way underpowered, poor saw attachement. Stihl did bump the power up, or so they say.
I have 4 335's, they all ran. I had the 2nd one on the west coast, broke the oiler the first day by turning it too far to get it to work. solved that problem, sure we had others, but you have to learn to adapt. Of my three old versions, one was a beast, would outcut most 020T's, but got harder and harder tostart and keep idling. When the compression dropped, I pulled it apart and found only a bit of piston wear. Bottom end is good. I spent $60 on parts, and expect it to be back cutting well. If the starting issue isnt solved, I'll try switching carbs. If it runs well, I'll do timed cuts against my Walkerized 5 month old saw, which was doggy stock. If it is anywhere close, I'll put on the tuned muffler and see what happens. If all is good, maybe I'll have Dennis trick out the motor and muffler. But only if all the work should give at least 15 % more speed than the current Walkerized one, which beats a friends 020T by 10%. (the fastest 020 I've ever seen!)
If Husky improves the carburation on the new saws, and gets the power back to where the old ones were or better, they will have it made. And keeps the prices low. Why get an overpriced, heavier saw with a poor saw attachment and stupid placement of the carb?