I have the med-hi at the bottom of the page here:
http://www.dejontool.com/DSM-MBC.htm
I love it, I have one boost(17psi) for street and another(25psi) for race. And with the push of a button I can change between either. At the end of the year last season I had problems with wheel spin(300hp AWD at slippery falls) in first so I would use low boost in first then when I made the 1-2 shift I would hit the swtich to hi boost right after. Worked really well.
I also reused the old Power/Economy switch from when my car had the auto trans in it, no switches mounted in the dash, easy to get too, and actually meaningful
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Threaded Mode