^^ what's your price on your products? care to post them here?
Yes, my first attempt was a blind look and all in. Consider that round 1. Is the metal portion of your heat shield extremely rigid, so much so that it can cut fingers if the edge is sharp? not sure what I am using has that amount of rigidity, but it's good to 1400 degrees.
Please explain how your version is also "completely sealed to the inner fender" as it appears to just slide down in there for a snug fit, but is simply resting on the inner fender.
Not saying I can make a better one, or one as good, but for $40 and some testing, I will make one acceptable for my engine bay and that looks better than my first attempt. I am going to open up the top on version 2 as well, so there's zero heat being trapped.
Speaking of heat being trapped, your version completely covers the electronics box, with no venting other than back towards the brake lines in the ABS unit. Wouldn't heat be equally trapped in there also?
Just talking out loud here, you make a nice product, and hope you sell them all, and you've obviously put in the time and effort to refine your design over time and trial.
It's like Origami, you just have to know where to make the proper bends and repeat.