I can only speculate, but....

Maybe they weren't sure if they could ramp up final production to 183MHz levels, so a 166MHz clocked and TV Tuner equipped Voodoo3 3000 could have turned out as a marketing problem if called "Voodoo3 4000". Voodoo3 3500 would have been more appropriate.

Another theory would be, that they (having - the already delayed - Napalm in mind at this time) had the 4xxx series planned to be filled with the VSA Boards.

yeah that would be very greatfull Gary

there are so many questions yet to be answered, I hope that missing info will pop up one day

But then again ike FalconFly said the delayment of Napalm might of been the cause for the V3 4K not to have come, and that 3dfx kept the 4.xx series for thier Napalm & Daytona series aka the Voodoo4 and Voodoo4-2 line

Maybe 3dfx-God might know, Hay Hank  do you have any of these letters of memo's  just be'n curious here mate

ah nice well shame that the Voodoo4 was late also, also wierd that the Voodoo5 kame earlier than the Voodoo5 for few, but understandable on the other hand, to launch thier fastest stable card out to pay off debts.