Caught two kahawai on an earlier version. I only made the one in the picture last night! The earlier one had a flat face so I don’t know how this one will go yet. I expect it will have an erratic retrieve which is what you want. I have made very similar looking wooden plugs that worked very well.
That’s good you are making a trout version. I suggest you make half a dozen different versions, some heavier, longer, and so on. Then try them all out at the same time so you can compare them.
Best wishes – Yellowfin