When you speak of Bonk III, you are talking about the CD, correct? If so, yeah, that was a US/TZD exclusive. Do you know if the US HuCard run was also limited to smaller numbers? How about Magical Chase? Also, what was a typical run for some of the common games like, say, Bonk's Adventure?
An interesting fact about the TZD second run of DE II in 1994 was that they came with a black and white "copy" of the original manual.
The service contract between TTi/TZD and NEC was an odd arrangement but it worked out well for us... Until 2001. IIRC they supplied parts and whatnot while TZD performed the hardware repairs up until the contract expired. This was really a pretty sweet deal considering the system itself became obsolete in '94 or '95. I remember around that time there was a guy/group of people that called themselves "Retrogames" that did some refurbishments for Turbo hardware. Send in your old system plus a nominal fee, and they'd send you a refurbed deck. At some point they all but disappeared from the face of the planet even though their website remained up for some time.
I've mentioned this before, but TZD itself was a weird beast. Those who are new to the scene only know TZD as a werehouse that sells old Turbo stuff. TZD is actually the remnants of TTi. TTi was formed by a group of people from Hudson and a group of suits from NEC as the American arm of the company to handle domestic distribution of the console and games. When the console lost out to the Genesis and SNES in 94/95, and Hudson wanted out, they negotiated that contract with NEC that George mentioned. With the Hudson people out, what remained of TTi became TZD. As also mentioned, they were a "real" company in those early days with a full staff and lots going on. When the NEC contract was up they downsized again. As of today, Steve is the only remaining member of TTi handling TZD. That's a brief history as I remember it, anyway.