Really appreciated for the feedback, I will review my intro and tighten the mixdown of my solo track and get it mastered by the end of the month.
My sub is a copy of my bass track, with a lowpass at around 90hz, it could play with the mixer channel at 100% but it came to certain parts where it distorted, so what I had to do, to keep it punchy but keep it from distorting, I applied a volume envelope onto it, and lowered it everytime it distorted, I wouldn't do such a thing if the track was to get mastered, I'd just lower the sub volume until it wouldn't distort at all and let the master do rest of the work, like we did with the collab, but yea, you gotta deal with what you have. x) When I send this in for the master, I'll remove the envelope and lower it a bit, so the sub being unbalanced shouldn't be a problem anymore.
Cheers.