i have a question..... if we use the hijack bass adjust, is it going around the 50hz limitation, and therefore reintroducing the DSP bugs?

I don't believe so, no. I think his band center is higher than 50.

Even if his band center was below 50, he's currently only doing plus or minus 6db, which I don't think induced the bug even at very low frequencies. I seem to recall you had to get pretty far off 0db and/or pretty far below 50hz before things started going wonky.