I really dig the sound and riffage!
The only thing i'm complaining about is the kick. I would try
another sample like the "unbelieveable pearl forum kick" (from Erkans sample
pack.
With some EQ : -boost at around 70-100 Hz with Q: 2.0 and 9dB~12
-apply high pass filter on kick drum around 50 Hz -3dB reduction, for the deep bass guitar frequencies to dominate the sub woofer
Bass Guitar (to blend it with the kick) :
-dip 70-100 Hz (depends on where you boosted the kick) with Q: 2.0 and -9dB reduction
-boost at 250 Hz
This works perfectly fine for me!