when i started shaving with a straight again after my arm injury i couldn't do my top lip or around the little beard stripe down my chin so i bought a couple 4/8's for that part and used my old 7/8 for the rest,i recently bought a 5/8 and 9-10/16 wedges and i don't need the 4/8 anymore and as i'm relearning and my arm is slowly responding to what i call straight razor physio therapy the tight spots are getting easier,i think within a month or so i'll be able to use my 7/8 again and i want to try a 6/8 but i think a 5/8 is the perfect comprimise