Thanks for the reply guys. I'm using hfsc + altq and would really like a finer grain clock for better bandwidth management on low bandwidth queues. Though I didn't get a "how to answer" for this question I managed to get the clock to 1000hz by modifying the source file /usr/src/sys/conf/param.c, #define HZ 1000 and recompiling the kernel. Everything running fine so far and pf + altq seem to be doing a great job at shaping my network traffic.
If I do have any problems with my new kernel I'll be sure to switch to a stock version and test before requesting help. Thanks to the OpenBSD team for their hard work and dedication to this great product. -- This is too troublesome
