I have talked to James at Bob Drake ( he's been there 22 years) He told me they have never changed the pattern or had any issues with the grill. I had sent him 8 pic's and he no answer. He said they don't have any grills to compare it to and won't for 6-8 months. It also seems that Drake is the only manufacturer of these grills, others sell them but get them from drake. Anybody know anything different please chime in, I need help. Thanks