I will say that if you do decide that you want to learn to do the little finger plant, there is an easy solution. Years ago when learning to pick banjo, my instructor had me roll up a piece of tape and place it on the head of the banjo, where my little finger and third finger should be planted and the slight bit of tackiness provided by the tape was sufficient to help me train my fingers to stay in place and in about 1-2 weeks of doing this I could remove the tape and never needed it again.