af540fgz or yongnuo 560III ????

Im sure everyone is thinking this is a no brainer other than cost for the Pentax gun but the situation is this. I already have a 560III but I'm starting to get wedding bookings so I'm thinking am I better having a gun with pttl with my K5 or use the yongnuo in manual and master that really. I'd appreciate your views. Anyone use the yongnuo for weddings or similar???

Cheers

Rockingdad

I would suggest a third option: Cactus RF60.

This unit is quite interesting with it's wireless possibilities and decent price.