Sony HVL-F60M overheating solved by Southern Photo
Southern Photo Technical Service In Miami Florida has made a modification for the Sony HVL-F60M flashes that allows about 44 shots at Manual 1/2 power in 77deg room temp before it shuts down. This has allowed customers to use the flash normally without the premature shut down. The web site is www.sp-ts.com
You can call their tech support line at (866) RUSH-FIX if you have any questions!!