I use longer lenses as standard: 80mm for 35mm; 100mm for 6x6 and 6x7 and 150mm for 4x5. I seem to remember reading somewhere, (could have been Fred Picker) that in using a longer lens you use only the central portion of it which results in sharper images. This was back in the days when I was setting up my first darkroom and whatever I read was "gospel" Since then, very little is gospel to me - but I still use the longer lenses! I do have a 50mm for those times when I want to print 11x14 or larger from 35mm - but it doesn't get a lot of use. I also have a fungus-ridden 50mm f2.8 that I use on an MF enlarger which is strictly for 8x10 contacts simply because the head can be set lower and I get shorter exposure times.
Use you 80mm and have the fun, (and sometimes frustration ) that we all do.