Changing your color may work, but I would probably try to change the retrieve speed. When fish aren't completely commiting to your bait, it means your on the right track, but something is not quite right. Changing your retreive speed can sometimes work. Also, try walking the frog rather than bobbing it straight, or if your walking it, try bobbing it. Another thing to try with frogs is trim the legs. Alot of times a frog with legs to long will make it so fish that aren't commiting completely will hit the long legs rather than the head. That's not a good thing.
As far as bad hookups, the biggest thing is waiting. If the fish are committed to to the frog, then you should land most of them. The Spro Bronzeye is the softest frog on the market and compresses perfectly every time. Most people think frog hook ups are bad, but its really just because it's hard to find fish that actually eat the bait rather than try to kill it. Try braid to. It helps alot.
So anyway, change color, retrieve, cadence, and trim up those legs. Hopefully that will work for you. Goodluck dude!