I will toss out a completely non-technical observation on this one. Maybe the ablaze 1's are just cheaper bulbs? I am a big cointaker fan, but bought a bunch of ablaze bulbs just because I wanted to get some LEDs into my Fish Tales a while back and didn't want to spend a ton. Just wanted to take the load off of the GI, and with 55 bulbs in the backbox...you know.

Anyway, I spent a ton of time fiddling with the ablaze 1's. They were so touchy. I had a few that just refused to work. I had some ablaze 4's, and I had some cointaker bulbs, they worked with no problem. I tried everything on the 1's from bending the leads out a little to making sure the contacts in the socket were clean, and in the end, I think I got under 50% working.

No idea why, but it's just sharing my experience FWIW.