At first I thought it helped but I started over from scratch and it didn't help. I did everything I could to make each line have the same number of nodes and always came up with an improper blend. I am definitely in 1:1 blend mode. Once I deleted one line and copied the other and put it where the other one was and made it the same size and the two blended, still I must be doing something wrong I just can't seem to work out what.The only thing that always works for me is to convert the two lines to shapes before blending.