I nearly broke into tears Monday when after three swings on the driving range (the last sounding a little funny) and on the third hole I pulled the headcover off my G400 LST to see this on the top of the crown.  Good news: PING already has me a replacement on the way but they are OUT of G400 LST so they are sending me a G410 LST. Which is pretty awesome but I'm curious if anyone who played the 400 and switched to the 410 what changes they might have seen or felt. Just curious what some