I change out my bucket on my B26 from time to time depending on what I am doing. I have an 8" (custom built from an 18") that is perfect for trenching and I use a 12" for digging when I need to move a lot of dirt or clean out a ditch. My machine is not heavy enough to use and 18" but the L47 might work good with it. I don't think it could use a 24 unless you have really sandy soil. Mine is mostly rocks and hard clay so even the 12" is a bit too much some time.I was going to get the 18" bucket possibly the 24" but once I decide it will stay on the machine, otherwise you are right... quick connect would be the way to go if changing at all.