Also: tell your friend to use less pedal. The drop has the potential to be dope but it needs to flow without the pedal, its like putting a ton of reverb on a mid bass for a dubstep drop, it just ends up sounding weird. Skrilly has sonically unclean stuff but its not mashing together on all those frequencies, its really clean producing.
Just a thought, I know from personal experience that its really easy and tempting to just pedal the fuck out of everything because it sounds so good. Real challenge to flow without it, requires more precision but the clarity on each note is worth it.