I would go with Mold Star 30 - It cures in 6 hours
Mold Star 16 cures in 30 minutes, but you need to mix and cast within 6 minutes!
I am also not too sure how rigid te mold would be as it has a Shore hardness of 16 as opposed to 30 for the Mold Star 30
Just my 2c worth
Bass fishing is my passion!
Making my own plastic lures is my hobby!
Catching bass on the lures I make is fulfilling!