The problem with coming up with a decent reply to your inquiry, of course, is that Heritage, , is a masterpiece. It is outstanding in all aspects, as you have found, and that it would be hard to really find a close comparison that is somehow lighter, or whatever would meet your needs. The obvious response might be: try a lighter dose, no? There may just be no good answer. By the way if you think Heritage is "overpowering" you'd better think twice about Kouros as a safe blind buy. It is a super powerhouse frag.
Good luck, and sorry I couldn't come up with a good option for you. Gave it a lot of thought, but didn't have one. If something comes to me, I will post here again. Good luck and let us know if you find something. A lot of this is searching and finding for one's self.