
In the field the 10" stock coil is great , it is a concentric style but have noticed when engaging targets it seems detection field really isn't the typical round to cone shape.
It works as a elliptical shape ( even better ) it can work around multiple targets without competing too much with what's in the detection field .
The 11 " works to cover more ground per sweep but really can perform in the worst ground.
The 5" inch is the dark horse .... cherry picker heaven ! This goes deep ... I'm not going to give dumb air test findings but in the ground it rocks ... If I didn't know better I'd think sunray made this coil.
It compares to my s-5 intruder coil for my sov gt. I love that thing.
I use the stock 10 coil more than the 11".
Bottom line : 11" is a hot coil , sometimes a little too hot some soils.
Ran less sens. settings in same soil as stock coil.
Which I thought was a little odd.