Thank you for the welcome IRPT!!! I love visiting the forums of my favorite car and all who love them...Turbo, as I have never dealt with SG personally, I have not had their products in hand before. I can make an assumption though...If you are saying that the two tubes have have one inline transformer powering the neon, that particular transformer is going to be just strong enough to power those two tubes, which is bad in my opinion. Clear red tubing, which is a clear tube filled with red neon gas, is especially sensitive, and requires more voltage to operate than argon filled tubes in most cases. Due to this, I feel the transformer is having to "warm up" for a bit to optimize voltage going to the tube. 12-volt neon is quite finicky anyway which is why I like to use strong dedicated transformers to operate my tubes, even my interior neon kits have a strong single transformer. If the tube that finally lights up looks fine after lighting, I would say it is the transformer reaching an optimum power point that finally kicks on the other tube. The tubing has to be processed correctly as well as the inner tube pressure makes a lot of difference in how a transformer sees its' "load". The entire manufacturing process has to be correct for neon to work as it should and the 12-volt environment just makes it have to be even more precise. Maybe try to re-arrange the tubes so that the slow tube is first in line and see if it does the same way...Sorry for the long post guys...I get carried away talking about neon...Let me know how it turns out!
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