I have these molds. I have been making baits for over 35 years. I sold 100 molds in the last couple years and still have hundreds. LOL...I'm trying to help you achieve what you want. Drill out the mold to accept a regular eye hook. Then it will fit both. It is an easy modification that wont ruin the mold. The regular eye also helps protect your line from damage crawling on the bottom. That mold should never have had a flat eye hook.