I haven't run the 421, only the 241. Holding the 421, it felt pretty nice, but it looked like a bigger saw than than the 241 does width-wise. I think that optical illusion might throw some people off, looks being deceiving and all. A family that deals in Dolmar and Grasshopper, near me, does firewood on the side (and between their 30' GN trailer and small 20K lb crane are well equipped for Hedge). The father, who's in his 70's runs a 421 almost exclusively, going up to a 5100 or 5105 when needed. The son, in his 40's runs the 5100/5 and a 6100 or 7900 when needed and they do quite well for themselves. They'll go out on various farmer's land and buck the trees into sections manageable with their crane, then load them onto their trailer. They finish bucking, splitting and piling the wood at the saw shop. The old man will spend entire days running tht 421 bucking up all sizes of Hedge, Oak, Ash and otherwise simply because it's lighter, he likes the a/v and it's pretty good on fuel. I'm pretty happy with the lineup of saws I have, but for him and his circumstances, I can definitely see the logic there. They probably do 80-150 cord/yr.