Hey Jimmy,
You will find info of patterns for gold in many previous posts here if you use the search feature. If you don't I;m sure that there will be some great advice and help by the super great folks here on the E trac site. Personally I only use the tight discrimination patterns when time is the constraint and I'm in a good area for finding gold. The key for me being that if I'm in a good area for finding gold then I want to open my discrimination up more or in many cases as large as I can stand and have TIME to dig all the targets. You most likely know...the more discrimination the less gold as it can range so much. The biggest factor: put yourself where you can find gold, then develop a pattern on that site that will work for you. Obviously this will take some time on that site.
I have collected patterns for gold from the many previous posts that provide some in site yet I still end up modifying it for my hunts.
Best of Luck,
Shov