When using a mold for jewelry, i am finding that a get a thin edge that tends to be sharp. I am using the resin obsession super clear resin. I have made the same pieces with a different resin and didn’t have this issue, I am thinking it would self level after I removed my bubbles. I discontinued using the other resin since it would yellow badly over time, hoping this one doesn’t but i haven’t had the product all that long. I am trying to find out if I am doing something differently like maybe working with it too long or if this is common. I have read articles about sanding and I don’t really want to go that route. Is there maybe another product i should try?