Rich,
You did shoot that bow, probably the first year it was made, perhaps the second. I narrowed the outer limb when I retillered it, and improved it's manners considerably. I don't recall what it was when I made it, or whether I even had a target in mind, but I weighted it some time later, probably during a dry spell, and was surprised at the draw weight. Got me curious what's up with in now, but no point even thinking about working with it in this climate. I'm having trouble keeping RH below 55%, at best!
I'm not sure one can pinpoint a precise, specific "ELB" design. We have the Marry Rose artifacts and then on the other end of the spectrum the "yard bows" from the late 19th century which survive as model, but they differ significantly.
I say if it follows the 5 part thickness to 8 parts width rule, you are good regardless of how much crown the belly has. I'm not convinced English bowyer's where so homogeneous, or that an arched belly has any particular benefit to warrant it's universal use. But it's ya'lls contest, and I most likely won't enter anyway. I know Marc is a great bowyer, and in particular at the top of the game in this design, but I'm not sure the premise holds that an arched belly has to follow the string excessively. I think you can add lenght to compensate. May not optimize cast, but would still be effective.