Got back from camping (again) a few days ago and have some time tonight to give my thoughts on the 600p vs. 620p. While in camp, I had time to really compare the two side by side. Spent probably an hour just cutting cookies. Here are the saw details:
600p running a 20" bar, MM, tab delete and tune.
620p running a 24" bar, completely stock.
Each saw running the same no ethanol premium fuel (Echo 40:1), the same factory Oregon LPX chain, and elevation was about 7000 ft.
Just handling the 620 between cuts and revving the saw up, it's noticeably faster than the 600. With the factory porting, unlimited coil etc, I have no doubt it is. I don't have a tach so I couldn't tell you what RPM each saw was running. But here is the surprising thing: In the cut, I couldn't tell much difference between the two. The 600 has so damn much torque it really surprised me. Would I choose it over the 620? Absolutely not. When the 620 gets that really restrictive 90* deflector cut out, the tab delete and tune like the 600, I think it will be a beast.
I'm I happy with the 600? Definitely. Will I get it ported? No. Although it would be fun to run one that has been, I don't think (for the average firewood cutter like me) it is necessary. You can really lean on this saw (although I don't) and it just keeps grunting through the cut. What more could you ask for? It is reasonably priced, torquey as hell, reliable as the day is long (it's an Echo), starts easy, is fuel efficient, and did I mention good looking? My opinion of course
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