ujoint smoothness Q

63 dart dirt track stock car 360/904/7&1/4 (welded spiders). I had the shaft cut/balanced & the front yoke was smooth in one direction/not so smooth in the other. the rear was not smooth. I took it back & they worked on it but it still seems way too tight compared to the smooth movement I have felt in others in the past. do I need to get another shaft & start over? thank you for your time. RR