another thing is to study hwbot and learn the rules, submissions, timings/speeds, and wazza.
i also watch extreme benching videos on youtube, some give you tips and hints on how to do certain things. or let you into their secrets.
yea the multiple OS is easy to do, took me 3 goes with RT se7en to strip an OS and make it optimal. start removing printer, LAN, sound, media drivers and then games, startup crap etc.
just always unplug your main SSD/OS when installing the others or youll lose the boot sector.
im having that much competition with a certain member on here i even plan nights by weather temps etc for benching! take my rig outdoors lol
when using 3D benches i try get away with the lowest resolution and set lowest colour bit, eliminate the un-needed prcoesses when benching even explorer.exe (when done start new task and type explorer.exe), 2d benches is best if you have a few ram profiles tested and ready.
i.e high speed/loose timings and low speed/tight timings. youll notice certain benches favour different ones and allow different cpu speeds.
some people boot on high speeds/volts but i tend not too anymore, always boot 5-9 less on the fsb and few notches less on volts then use the mobo oc utility to push each stage, if that goes well then go higher.
and the best thing i found lately is to have someone with similar hardware to compete with... its the difference from thinking 'i dont want to push anymore than 1.6v' to 'ill beat him at 1.7+v'
hope this helps a bit
p.s im still devoted to my team, just like helping out