I learned the fine art of double clutched downshifts in my dad's '70s International Pickup. It had synchros, but they didn't do any synchro-ing, so you had to rev-match anyway. It was alot of fun....that nice v-8 had power in any gear. I accidentally started in 3rd one time.....didn't even stall, let out the clutch, got on the gas, she got up and went!!! tried that in my subaru the other day.....didn't work so well.