ladytexan
Senior Member
Somewhere along the way, I remember reading the a. D4 = D25, or b. D25 = D4. Again, it's been a while since I read the article, so I'm posing the question here. If one of these two models wasn't 'up-to-snuff' during production, were they switched to the other model? If so, what was the sequence, a. or b. OR c. none of the above?