The solution may be to add more religions. I have added four religions to the newest release of MarnzMod along with the inquisitor. I'll see how that works.
Bmarnz,
Adding more religions to the game will not solve the
core problem. I'll still pull off a victory too early.
Most of my test games had large maps. I only ran across the problem when I played games with very small maps. It is very hard to achieve religious unity in every city early on. It takes time, as you must research the tech for the inquisitor before you can remove non-state religions. Adding the Prerequisite for religious unity will give other Civs the time they need to research a religion and to spread it's influence to several cities. At the very least it will take a lot longer than achieving a 70% religious influence victory.
Right now it is possible to have
non-state religions in your empire and still win a religious victory.

I think that violates the intent of the type of victory we were trying to achieve. I.E. Not only should there be a pre-requisite for religious influence, but also for religious unity. IMO, its a hollow victory without achiving religious unity first.
Please add the
pre-requisite to have the state religion established and
0% non-state religions for every citiy you own,
before a religious victory is declared. This means
75% religious influence alone will not produce the victory condition, unless you first have religious unity.
I think this is a very important change to make.
Very Respectfully,
Orion Veteran
