hi
I use the destockable ethernet câble 7a on all my towfish, the last use : 100 m with hélix 12 G2, no problem, and now 50 m with an hélix G3...verry good !!!
![Evil >:D](http://forums.sideimagingsoft.com/Smileys/classic/evil.gif)
but on this câble the sheath that surrounds the wires was sensible to cut.
you must take care on jonction seal and do not take a verry small curve or fold it.
this câble is good and no expensive solution if you think change it frequently.