due to production problems
they are the same coil as the 5 pin, and yes they split but all Tesoro coils are made the same of that ilk I think it was due to low sales and couldn't be bothered problems
so yes great coil gone to waste
sad for those of us that like them I sent mine in they wouldn't even fix it so had to fix it myself works fine and well the lesson is don't send anything to Tesoro unless you ring 1st.
depends on how much ground you want to cover and how deep you want to go and how much weight you want on the end of the stick
and of cause how much cash you want to fork out?
there's plenty of options available whether a Tesoro coil or a NEL or Detech.
I have mostly Tesoro coils and they work great and I will say that and I will say what I don't like too and nothing is perfect is it , and if we like it or not money rules the roost.
AJ