Anyone try them? ... sticker shock on them.
Do they really help with blow back??
Does anyone else use the blow back to help judge a best speed to troll getting the best results for the gear being trolled? I used to use the humming sound coming from the stainless steel down rigger cable however with the braided lines there is no more humming. Over time I have discovered that with a 30 degree blowback in any tidal flow direction gives me the most strikes. Going with the current it might be as low as 1.5 MPH or with the current as high as 3.5 MPH. I will stay with the proven round lead balls.
That ignores the effects of turbulence which reduce drag. Think of the dimples on a golf ball. Looks like this design is using dimples to create turbulence and thus reduce drag. It also likely produces vibrations in the water that the fish pick up on. But I would never buy these because, as already suggested, way too expensive and the fact that I rely on the angle of the dangle to judge my speed.Well as a retired engineer geek I would suggest that surface area creates drag and blow back. A sphere has the least possible surface area by volume (and therefore weight). At least that's what the book says. All those years in school are really starting to pay off now!