I returned the next day and found that for the most part, the silicon created the shape of my design nicely. However, it would be hard to tell without first testing how accurately it could recreate my design. 

To start pouring the resin mix, I first secured my silicon mold with rubber bands to prevent the resin from leaking between the cracks of my two halves. Then I determined where to puncture a hole in my mold, which is where the resin would be poured. Because my design was covered in textured grip, which I didn't want to mess with, I chose a smaller area around the middle where the smooth texture of the grip would be.