Oh yah, I think I saw you recommend those to someone else.
Not my style, a bit too flashy for me and my truck. On my beaters (pretty much every vehicle I own haha), I actually prefer that sunfaded taillight look. That and I don't trust aftermarket part quality as they do not have to conform to OEM standards and/or ASTM specs and what not. I don't trust every set to fit either, yet with OEM, I've never had an issue. As far as those boards go, the pins the bulbs make contact with can be clean, yet the parts to pay attention to are the circuit traces. If you see some corrosion, there could be enough on the other side which is impeding current flow. I went through at least 4 or 6 GMT400's before I found two circuit boards I wanted to use. I'm a different kind of weird I guess. But, after my T40 & dielectric treatment, two years later and they're still dandy. Except for my driver's reverse light, but that's because the corrosion in the old circuit board was so bad it started to wick into the harness. I should replace it..