So, I finally did the HWT to my HH A2 from US Manufactoring. Soaked 5 minutes in hot water (almost 160 ºF) I kept the cufs and waistband material dry, and 30 minutes in the dryer machine. Result: No shrinkage sinals, it fits exactly the same it did before. But after the Howard conditioner, the jacket became clean, more beautiful and the hide supple.