Originally posted by HopelessTogger but I believe the V6II does TTL but not sure if it does for Pentax.
No, the Cactus V6II does not support TTL (except TTL pass-through for an on-camera flash).
The V6II "only" supports HSS and PowerSync (aka HyperSync). However it supports it for Pentax and stays a true multi-brand trigger by allowing you to not only fire the RF60 and Pentax flashes in HSS and PowerSync mode from your Pentax camera, but all supported system-dedicated flash models for other flash systems i.e., Canon, Nikon, Panasonic, Olympus, and Fuji. This includes models from third-party manufactures like Metz. The V6II now also remotely controls the zoom settings of such supported flashes, not just their power levels.