Was Brown the one where you started with a Larvitar? Might have been Prism. Haven't played a hack in years but I always liked how they seemed to up the difficulty a bit. My major problem was most of the good hacks got up to about the 3rd badge then the guy gave up.
I'm pretty sure that was Prism. Yeah, it's rare to see a mod that goes very far, but I can't blame people for it. I tried making an Emerald ROM years ago and I gave up after a month worth of effort which only got me to the 4th gym.