Since you asked, Homelite XL923 with 16"-30", Super 1050 Automatic with 24"-36", and 7-29 gear drive with 42". But, to be honest, I usually grab the FarmBoss 290 with 18" or the 660 with 25"-36" just because they are in the garage. All of the old Homelites are in my shed, and it takes longer to walk out there and climb over all the XL12's laying all over the floor. I just gave a friend a Homelite C5. Within a couple weeks he had it purring, with a new 30" bar and milling chain. We were milling the first slab and all was going really well when the saw cut off, the plug wire pulled out of the coil. I gave him a new coil and a couple feet of plug wire, so he should have it purring again, soon. He keeps asking if I'll take anything for the saw, or can he do something in trade. I might let him take my C72 and tinker with it. If you check my avatar, that's the 1050 I used for milling. I bought the new 660 to give the 1050 a well deserved break. Actually, I was giving me a break. The 100CC 1050 with no comp release could be a SOB to pull, and if it kicked back, it would take your fingers with it. So, now I just look at the 1050, smile, pat it on the power head, and grab the 660, Joe.