How are you going Wayne? Had a talk with a friend who is a livestock instructor over lunch today about hide thickness. He does a bit of leather-work himself and agrees that thick leather is getting harder to find. He said the main factors in hide thickness are age and gender. Male cattle have thicker hides than females. Incidently, the thickest part of the hide is the area each side of the backbone. Hide thickness slowly develops in cattle until they mature. In adult cattle, the rate of hide thickness development is greater in males. This means that the hide of an old cow will not be that much thicker than bull/steer that is 3 or 4 years old. Since larger numbers of cows and nearly all steers are now slaugthered around the time they mature, they don't live long enough to develop the really thick hides required for some applications. The main source today is from bulls that have passed their use by date. To make matters worse, tanneries often shave down hides to a uniform thickness which better suits mass production. This would explain why thick leather is getting harder to find. Hope this helps.