Sam, You course has wonderful information. There is one issue which has changed in the past two years, the thickness of the aluminum layer in All-Clad. You have stated, "It is right around the same as All-Clad MasterChef, which has an aluminum exterior of 3.94 mm. " I remember that this same measurement is included in your course. Like you I travel through cookware shops with my micrometer in hand and have noticed that All-Clad may be dieting. I think that you will find that the new All-Clad MC2 has a total thickness of 3.05mm, resulting in 2.58mm of aluminum. I would appreciate your confirmation of this measurement. I wonder if the diet has been extended to their other pans. Thank you, Tim ps: Word is out that Meyer will no longer market fully clad pans. Also Calphalon will be introducing a new fully clad Contemporary stainless line. Any comments?