So I'm confused lol. If its possible to adversely change the flavour (as in my case) would it not be logical to assume that the flavour could be enhanced? As I have never really added many enhancers/boosters except for the smelly crap I dont know. I try to keep it all pretty simple.
You can definitely enhance flavor and aroma. They are expressions of the phenotype, which we all know can be expressed differently in different growing conditions. That being said, there isn't a magic product that will do it, rather multiple strategies that CAN have a positive impact on flavor and aroma.
The most important is feeding your plant a well balanced diet, and even more importantly not to overfeed.
Keep your watering schedule consistent and water at the same time every time you do - letting your plants get too dry under a HID bulb quickly cooks off some of the more subtle terpenes.
I personally believe that soil is far superior to hydro as far as smell and flavor go. Completely organic is even better.
Keeping your grow room environment dialed in and consistent is also a big help.
The healthier a plant is, from seedling/clone to fully mature, the better the finished product will be(duh).
Some might give me shit for this, but I've found that if I run my RH too low during flower - anyting under 40% IMO - has a negative impact on flavor/aroma. My buds seam to smell a lot more with my RH around 45-50%
A SLOW dry is crucial too. If your buds take less than 7 days to dry, your doing it too quickly and loosing alot of terpenes in the process.
On a side note - anyting other than a good base nutrient is for the sole purpose of increasing yield. I believe every product you add on top of that actually masks the plants true aroma less noticable. I ALWAYS start to get the most smell when I'm doing my long flush at the end of flower.
This has been my experience anyway.