Great concept,,

lots of hurtles to over come

I use line counters, and always know where my bait is in the water column.

Prefer counters to counting wraps as you can re set the depth after line getting ripped out bashing a shoal.

Curious to see what you have in mind.

The ice thing is a toughy,,, my line counters don't get affected

Would love to run the big pens though, like you say