An instrument will be easier to play with the correct sized strings, rather than cutting down larger or full size strings to fit smaller instruments. It is acceptable to trim an inch or less from the peg end to allow the string to fit into the peg box. However, we do not recommend cutting strings any shorter, as it is possible to damage the wire wrappings.
Additionally, if the string is too long, wrapping a large amount of the unsilked portion around the peg shaft can cause the string (typically the lower strings) to break.
NOTE: When using too large of strings on small instruments, the strings' playing tension becomes too loose, resulting in flabby, unevenly-stretchy strings. Each D'Addario fractional-sized string is designed to fit its specific size, resulting in a better performance.