spark map again !!

[screamer69]

right after much reading ( to much reading )im still haveing problems with my spark map and the understanding of it it dont matter how many times i read something i still carnt get it round my head but if i watch or shown something no probs ill get it first time

right ive got a 10x10 spark map for my engine thats a proven map and i no that up to 10 psi the standard map will work ( did it before on standard managment ) but thats why i went lower compression pistions and m/s

the cars built for 35+psi but i would like to get the map sorted up to around 20 psi

heres the standard map

17, 18, 20, 21, 23, 25, 26, 28, 29, 31
15, 16, 18, 20, 23, 24, 27, 28, 29, 30
16, 17, 19, 21, 23, 25, 28, 28, 29, 30
16, 17, 20, 22, 25, 26, 27, 28, 29, 31
15, 17, 21, 22, 24, 25, 27, 28, 29, 30
15, 16, 23, 23, 25, 27, 29, 30, 30, 32
15, 18, 24, 25, 27, 28, 30, 32, 33, 34
15, 18, 25, 26, 28, 31, 33, 34, 37, 35
14, 19, 26, 28, 31, 33, 33, 36, 38, 38
13, 19, 28, 31, 34, 35, 35, 37, 38, 38

rpm10, 20, 30, 40, 45, 50, 55, 60, 65, 70

mapBins=20,30,40,50,60,70,80,90,100,110

so heres my questions

i need the map to be 6x12 so i have the other 6x12 for boost side is this right ???

this maps for a 9.2:1 c/r engine so i should be able to run a bit more advance with this map if i can how much would be recomended for it

ive looked at the estimator and read that u take 0.3 per 1 psi so at 10 psi do it add 3 deg to the map or remove ???

sorry for the long winded post but i really need to get this round my head its going in to be mapped with in the next 2 months but i would like to get it as good as i can by my self hell ive done everthing else it just this now

thanx for any help offered