Thanks guys. I am actually very pleased with my repair. I did thin the silicone when I seam sealed this tarp and it worked just great.
This tarp is being loaned to a buddy of mine all next week. We will be with 3 other friends on a 7 day AT trek. I will have HG cuben. Looks like we could have temps down in the 20s our first night out! Whoo Buddy! Now that's hanging.