Wireless TTL

_MG_9569, originally uploaded by photogeek21.

So I gave into my gadget weakness again and broke down and bought a set of Pocket Wizard Flex TT5s to wirelessly sync my speedlights in E-TTL mode.
This image was taken at 10 pm on my front porch the TTL let me play with my ISO - I needed to push it to 6400 inorder to get the landscape lights to show up in the exposure - the TTL automatically adjusted my flash output as I upped the ISO to prevent Aly from being over exposed. Sorta nice to work this way especially when the speedlight is mounted somewhere out of reach.
Now, I did hear how unreliable these TT5s were before I bought them and I'm sadden to say all the reports were true, I was getting about 25% no fires - even with my 550 ex which is NOT suppose to have the RF noise problem my 580exIIs have. But the promise of HSS and Wireless ETTL is keeping me here hoping someone finds a solution....