Wrap (or crimp) your wire ends dude trust me you'll be grateful you did if you hook up on something large. Also I found to eliminate bubbles stir resin (with hardener) very evenly and slowly standing in a dish of hot water to thin it, then pour slowly and steadily. Refrain from squeezing the mold as it will suck air in, a very thin coat of vaseline or baby oil on the mold faces can help too.
Before installing the wire in the mold, it is better to wet it with the resin. Also, wet the details of the mold with the resin. So that it will catch less bubbles.
