I have been reading the Oliver plow book which was published in 1920 ,but it is still a very good read and has some good points in there. It tells in there that depending on where your soil fertility is tells you whether or not you need to plow shallow or plow deep. It gives other reasons also but I am using that one example. So how many of you own more than one plow for different reasons? Like me, I have a Massey #62 two 14" that I am converting over to a three bottom. It is a good general purpose plow. I have an older Ferguson two 12" plow that I bought to go to plowing shows, but it has the moldboards with a very sharp curve to them,so it does bury sod better than the general purpose moldboards on the Massey plow I have. I also own a Ferguson Disc plow which is just the trick for plowing corn fields,never plugs up...I also have a lot of rocks so it is good for that reason also. I also have a Farmall A-151 disk plow to go with my Farmall Super A. It was give to me was the reason I have it. I also have a Ferguson 9 shank tiller, or field cultivator as some call it. I actually find it to be one of the most usefull plows I own. Any of you have more than one plow for different reasons?