I'm actually doing it just before the voladj at the moment. Basically I am delaying anything that is coming from userspace into the kernel (i.e. from the player software)

Yes this probably will mess voladj up slightly but at the moment I am more going for proof of concept. I doubt 20ms is going to make much difference anyway.

I plan on getting it permanently included in Hijack - it basically has to be included in Hijack since it's a kernel mod otherwise people won't be able to download binaries from Mark's site. I would have to take Mark's patch each time he updates Hijack and then apply my patch and release my own binary -> yuck. It should and will be a hijack inclusion (assuming Mark let's me )