run the snot out of it at a good 40:1 mix and do not concern yourself with its pedigree until it blows....i fyou are still cutting with it when that happens (5 to 10 years with good maintenance) then come back and cry for help...and yes cuinrearview is a smart ass, thats what makes him fun to bs with....you will get used to the different folks quickly...if you have a thin skin...wellllllll their are fixes for that...testosterone shots come to mind...or this..https://en.wikipedia.org/wiki/Hormone_replacement_therapy_(female-to-male)I bought it to cut with. I will probably do the mods you mentioned and I am probably going 24" or 28" with the bar......maybe one of each.
have agreat day and cut lots of wood...better yet send us pics of your good finds in the firewood section.