Many thanks for your e-mail as of 12. Jan. 2011. Unfortunately the mentioned flash unit mecablitz 58 AF-1 digital for Pentax can't be used at HSS-mode in wireless mode as master or controller. A special firmware also isn't available for the flash unit in order to use this function. This function also isn't possible with the new flash unit mecablitz 58 AF-2 digital for Pentax.
We regret that we are unable to give you a more positive reply and remain with best regards Roland Laemmermann Technical Support Metz-Werke GmbH & Co KG