[quote=@Antarctic Termite]
<Snipped quote by ClocktowerEchos>

I know, but how many d6 form the counter pool? One? Equal to your own pool? Case by case?
[/quote]

Counter pool is the same number of d6s as your normal Pool.
If you have 3d6 in your pool, your counter pool is 3d6; you just have to hope you roll higher.
One of the main things of this system is to allow you to gain a lot of small/low level skills quickly if you want (since the chances of gettin g all 6s is higher at the start) while still providing you a way of balancing out so that you aren't constantly getting levels or instantly passing checks.