6-8% is very low, but it can be achieved for a short period of time with the correct diet and training. I would agree with the others above too, recomping can be very difficult and lead to spinning your wheels. Especially if you're already lean (~12%), gaining muscle and losing fat becomes a very slow and challenging process.
If your current goal is to get super shredded, I would focus on fat loss and muscle maintenance. Tr1umph is great to keep in your staples, and adding in a thermogenic product like Ignit3 would be a good addition. I would also check out Alphamax XT if you're in search of an all in one natural anabolic product. Alphamax XT contains a solid natural test profile that can help increase libido and strength, and it also contains a natural AI for limiting cortisol and estrogen. To top it off, Alphamax XT contains forskolin, which is a great ingredient to help improve body composition and maintain muscle while dieting to low body fat levels. Definitely worth reading up on