I'm not sure--I quit racing for, oh, 12 years in 1992 and lost touch with Del. Shame on me. I know he was always mystified that the MicroZeta didn't sell better as it was clear to him he offered (at the time) a superior product. Unfortunately, then as now, RC buyers tend to be very sheep-like in their habits...if BIG Name Racer wins with a certain product they all run out and buy it thinking they'll win too. Never mind BIG Name Racer likely could have won with a box full of stones, wire, and a switch
. Del never had a supported driver (even I wasn't allowed to say I was "sponsored" by him...and I'm smallest name driver on the BEST of my days) so he never had that marketing boost. Hopefully Tekin will be able to capitalize on securing the service of REALLY BIG Name Driver and succeed in the marketplace! I wish them VERY WELL as they are, in essence, the "home team" now.
I know the TurboZeta was selling well to the pulling crowd, but it may not have provided enough money to justify the time he was investing. This was also the lead-in to the '90's tech explosion in Seattle (world-wide too) and he likely was able to make HEAPS of money for his talents to be applied elsewhere.
I did a google search for him a couple months ago and it would appear he is still actively involved coaching girls soccer (football to you, eh?).