Has anyone used Quantum TTL with their medium format camera?

I'm looking at upgrading to a TTL flash on my Rollei Hy6. I'd like something that I can boom above camera in an Octabox and still get TTL exposure for editorial portraits. Has anyone used the Quantum T2 on a Hasselblad or Mamiya with TTL, and can you give me a brief review of what to expect? is the exposure accurate and reliable?

I use a Nikon SB800 with my Hasselblad, so why not?

OP; are you sure that Quantum does TTL with a Hy6? As far as I know only Metz offers TTL adapters for Rollei cameras.

spijker said:

OP; are you sure that Quantum does TTL with a Hy6? As far as I know only Metz offers TTL adapters for Rollei cameras.

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It will TTL with a QF18 adapter.

Ok, I'm not very familiar with the Quantum system. Sorry, can't help you with that. I've only done manual flash with the Mamiya 645 Pro/AFD3.