Anyone try this? Instead of hand pouring the vein I though I use the plastic syringe. That way I keep the Pyrex cup on the griddle so it won't lose it's current temp. I have 2 plastic molds that use a built in injector and nothing has happen so I think it's really same thing at the syringe.
Not using on the plastic molds I finally purchased an open pour aluminum mold but trying to do multi color baits.