eBay T-Visor guy here...
I happen to stumble on to this thread and figured I better weigh in and defend my T-visors. My intentions with my T-Visors are to make the best T-Visors out there. I honestly never hear anything but good things about my T-visors and thus I have not changed them much for several years. Now that I know some of the things that you guys would like improved, that's exactly what I'm going to do.
Starting with the darkness of the T-Visor. This is literally the first time I have seen or heard someone say that they were not happy with the darkness of the T-visors I produce. 1st time, really. As I see the two kinds side by I can see what you mean. The one to the left is a darker shade. Although I do want to point out that is not the best way to accurately compare the T-Visors. The more accurate way to compare them should be while in a helmet where light is not coming through from the inside (unless you have a lightbulb for a head that is). Having both t-visors installed in helmets, side by side would be ideal. Then I would be willing to bet the differences would not be as great. But I digress, this is all irrelevant because I have the option to go darker with mine and that's exactly what I will do. Ya see, I figured if I made it too dark it would begin to make seeing out of it more difficult then it needed to be and with no prior complaints about it, I figured it was perfect. I am due up to purchase more material for my T-Visors, from now on I will go with a darker tint. This is improvement #1.
For the record, my T-Visors are exactly 1/8" thick which is equal to 3.175mm. So thickness should not be an issue.
The other major concern here seems to be the amount of curve in the front portion. This has been a tricky thing to deal with. Some T-Visors seem to turn out better then others when it comes to the amount of curve on the front. Ideally the curve is consistent with the curve of the rest of the visor. This is the case quite often. However some of the T-Visors tend to not curve as naturally and appear flat toward the bottom. The degrees we are talking about here are very minimal. But that does not matter, as I said at the beginning of this post, my intentions are to make the best t-visor possible. So beginning with the next batch I will improve the curve on the front.
So quick synopsis for those I have lost with my previous ramblings: Thanks for all your comments and critiques, I will use this information to build a better T-Visor! A darker, more ........curvy-front T-Visor!! I encourage anyone with any comments or suggestions to please contact me. Thanks for your time.