Plo8 question

For the PL08 guru's,
I thought if you paired the board with any of your low cards that you were counterfeited?
How exactly does that work if 4 cards are under 8 on the board and you do pair a card. Could you use the other 3 cards?

You always use exactly 2 cards for both the high and low.

So when the board is 2344J

And you have A248 You have a A2348 low. You use your A and your 8 because you have to make a 5 card low for it to count and if you used your 2 or 4 with your A you wouldn't have a 5 card low just a 4 card low.

On a 23448 board. and you had A248 again. Your A and 2 would be used for your low along with the boards 348 and would again make a low.