HHmmm, I dont know about cows, but there is a lot of cow (No Swearing Please) floating about.
Not you Tailisman.
Isnt it about getting more weight behind the ball and adding rubber based adhesive.
COuld be wrong, but not much mre to it than that.
I ad one and it was mad. Very very responsive.
I would imagne there is a lot of luck and some judgment behind what makes one bat pretty good and the other one very very good.
I heard a roumour that 5 of the Aussie used them in 2005 ashes series