Irishrover, I fished Gold Lake years ago. I also talked with a guy that fished the lake. He showed me a fly much the same. He said however, to put it on a full sink and let it sit on the bottom for a few minutes and then strip in as fast as possible. I never got a touch and neither did he. So, I switched to a brown speckled woolly bugger on the type 3 full sink. I did strip it in very fast and just killed them. At that time I did catch some big brook trout but the rainbows were the main story. They were huge and fought like steelhead. Not to knock brook trout but compared to the rainbows I actually was disappointed when I did catch a brookie. One of the brookies may have been around 20 inches but the rainbows were that big and a bit bigger. I don't know what's happeneing with the lake now but brown was the story and the fly you are showing just couldn't touch the bugger. I ended up giving him two of them and he started catching them. If you want to see the fly (speckled bugger) let me know and I will try and put a picture on the site or email you the picture. If you re ally are interested I will mail you one. Even though it's just a bugger, the speckled appearance is deadly in just about every water I've fished. I only tie them in two colors, brown and green. Both are deadly!