Oh, cool! Glad you guys liked it. I only got to playtest it once as GM--by the second session, we'd switched to HarnMaster Core after Patrick and several other elitists kept screaming about how we were playing Harn "wrong" by using ANY form of d20.
I thought it worked well in the playtest, but the players complained about losing Sanity points for seeing monsters, casting spells and using psionics.
The problem was that while I had all the third party d20 books referenced, most other people who read the rules didn't. My system was cobbled together mostly from bits and pieces of Shane's d20 Harn Guide, Swashbuckling Adventures, Fading Suns d20, Call of Cthulhu d20 (sanity, magic and psionics) and whatever else I could lay my hands on that I didn't invent myself.
I was particularly proud of turning D&D monsters in unique Ivashu, like Belker, Lord of the Mist (at the end of my rules). That change alone--the way I presented it--represented a massive shift in the way standard Monster Manual critters could be reimagined as very special encounters. Of course, some of that credit goes to NRC...
If you end up using any of it in your game, let me know how it goes!