OK, I know that XP rules are sort of of the limit for the OGL stuff but I am wondering where the line on that is drawn.
For example if want to give advice as to XP awards in adventure I write is that kosher.
Also if I am writing a new d20 game and want to use standard XP table but get rid of the whole encounter-ECL-XP loop and replace it with, say, XP per idea system, would I be allowed to do that.
I am not speaking about reproducing the DMG rules or even level table from PHB but am wondering is any mention of XP in the OGL work entirely unacceptable.
For example if want to give advice as to XP awards in adventure I write is that kosher.
Also if I am writing a new d20 game and want to use standard XP table but get rid of the whole encounter-ECL-XP loop and replace it with, say, XP per idea system, would I be allowed to do that.
I am not speaking about reproducing the DMG rules or even level table from PHB but am wondering is any mention of XP in the OGL work entirely unacceptable.