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: 10-12
Thread: Yellow
Body: Yellow Thread
Thorax: Yellow Thread
Rib: Pearl Flashabou
Cheeks: Holographic Gold
Breathers: Poly Prop Yarn White
Then Apply A Coat Of Epoxy On The Body and Thorax Of The Fly