I have a set of the Harry Higley ones (also from Tower) that I use all the time.

http://www3.towerhobbies.com/cgi-bin...&I=LXL787&P=ML

Slow, steady pressure . . . and occasionally the music wire will snap anyway.

Landing wire that bends is a mixed blessing. If it didn't bend something in the airframe would have had to . . . and glued up balsa don't bend so much as tear and crack.