Yes, it is with a headless design anyway... just pass the string through the clamp, activate the clamp and cut off the excess. I used the next heaviest gauge up to my normal set on a 34" (so 45-105 instead of 40-100). After some experimentation I found I preferred to use a 4 string set with a high C (32).
To avoid the spiky string ends, once I clamp and chop I remove the string from the clamp again and chop off nearer to the actual part of the string which is held by the grub screw so once put back in and tightened the ends don't come out of the clamp.
I don't think I've ever used the word clamp so much but I quite like it. clamp clamp clamp.