I have only just got back my results and reducing testosterone levels takes times. I am still figuring out why my T is so high and other female hormones so low..i basically have the hormones of a man, not a woman! I have a few endocrine imbalances with many symptoms, sweat smell being one of them but not the most disabling. I am going to monitor the sweat smell when i do balance hormones, as during the times of the month, like i say, when T is lower, the smell is not so bad for me personally, so it might be why many young guys are prone to this type of smell when T levels are at their peak.
Englishguy makes a good comment about consuming lots of proteins, which are high ammonia producing foods. Try to go very low protein for 2 weeks to see if that makes a difference.