6-6: always 24/18(2), 13/7(2) except after 6-1 opening, then 13/7(2), 8/2(2)
5-5: usually 13/3, but sometimes 8/3(2), 6/1(2) if you hit a blot.
4-4: as playBunny suggests, except consider 24/16, 8/4(2) or 24/16, 13/9(2) if you hit a blot on 16.
3-3: Far too many options to fit.
2-2: Usually 13/11(2), 6/4(2) but sometimes 24/22(2), 6/4 (e.g. after a 4-2 opening) and occasionally 24/20, 6/4(2) if you hit a blot on 20.
1-1: either 8/7(2), 6/5(2) or 24/22, 6/5(2) depending on the situation. Don't forget to hit a blot on 20 though.