i started a thread about some lacky saws I found at our rural dump here and it became somewhat of a debate on the pros and cons of porting a saw so I figured I’d make a new thread just for that debate. My 2 pro saws are both woods ported and I like them that way. One is a 390XP that I bought nearly new that was straight gassed by someone. I got the saw for $150 and I had a new piston and jug put on when I had it ported for $500. Then I bought a 562XP and had it ported also. I figure these 2 saws will last my lifetime with me being 56 now and will be all I will need to cut my firewood. Some are thinking that a porting a saw might hurt the engine...? I don’t know. Any thoughts?