I tested the lures in my bath tube, but with two sizes of lips. When I use larger lip, lures have some instability. I will try to explain. Lure works stable on slower retreat, but when I speed it up (like running in fast river), lure get instability like frighten fish. It doesn't make loops and jump out from water, simply act like fish trying to avoid predator. It fastly change the running line, and come back on it.
When I use smaller lip size, lures are more stable, and doesn't act like I described. Now I'm confused what lips to leave on them. What do you think?