Try fishing these patterns as part of a team of two or three flies, use a heavy fly on the point with lighter patterns on the droppers , this way you will cover more depths and hopefully catch more fish.
Hook: Fulling Mill 31165 Super Heavyweight Grub
Sizes: 10-14
Thread: Red
Body: Red Thread
Rib: White Flexi Floss
Under Thorax: Glo-Brite No.7
Thorax: Flexi Floss Hot Orange
Breathers: Poly Prop Yarn White
Head: Red Thread
Then Apply 2-3 Coats of Cellire Clear Varnish over the whole Fly