I'm glad you like it Galamb! I've always seen Champaca as a meaty tuberose and jasmine floral. This thing is huge though! It has the same indolic qualities of Carnal Flower, however Chamapaca is way more indolic and can actually at times smell like a meat locker. Champaca also smells quite similiar to its own Guerilla 1. I used to love Guerilla 1 until I read that it smells like raw meat due to the fleshiness of the indoles. I rarely wear it now, but still like it a lot. Please sample Guerilla 1, you might like it enough to purchase it instead of Champaca because it's waaaay cheaper.
Your description of Chamapaca is making me want to sample it again, even though I've tried about a dozen lol!
EDIT: Also try to sample Guerilla 2 if you can. Guerilla 1 is more metallic and fleshy, and Guerilla 2 tones down the metalic aspect of Guerilla 1 yet is more floral.