RTV is how many of us started. For me, I guess Ive been pouring for close to 15 years. When the custom aluminum molds first hit the market, I, like many others quickly bought everything that was available. Unfortunately, the 3 or 4 guys that makes these molds are not able to keep up with the demand and the customer service for atleast one of them is deplorable.
When I find some free time nowadays and want to pour a bag of worms for friends or myself, I find myself reaching for one of my trusty rtv silicon molds!