TKO 600 ....Anyone done one?

one of the knocks i have heard about the tko is it does not shifting at high rpm. former co-worker had one behind a blown sbc, if care was not used when grabbing gears at full throttle it would just lock up, as he called it. anybody here anything on the mcleod unit yet? i know passon performance was working on a 5 speed 833 cased design, but i have read somewhere that it was going to be around $5k, and that was for just the trans......