Could someone please suggest the best way to straighten out mallard flank? I am trying to tie some Hornbergs and some flat wing streamers and the flank I have is all curled up. I thought I hit the jackpot this weekend when I saw a device used to straighten out womens hair at Walgreens. I tried this, at first the flank did straighten, but this morning it was back to curled. Any advice would be greatly appreciated.