I did become a dealer for the Speedo Healer, since my last post, and have the units in inventory now. Still waiting for the first "Plug and Play" harnesses to show up from Hungary, they have been shipped, so very soon.
As far as setting the unit up; the instructions sound pretty simple. I cut and pasted them for you below.
Setting and Using your SH 3.1 Preparation
1. Ensure that the unit is installed correctly by executing the SH Test instructions (Refer to the Install Guide bundled with the Harness Kit).
2. Determine the Calibration value needed for your application
(If you can’t access the on-line calculator, refer to chapter 4).
3. Turn ignition ON.
Programming a calibration value
␣ Entering into programming mode does not clear the previous setting, so you can update a previously stored calibration value easily.
␣ All settings are stored in Flash memory. No need to repeat programming after the battery or the SH box has been disconnected.
1. Press BOTH buttons on the unit until [L] is indicated.
2. The Sign of the calibration value is blinking: [-] : Negative
[P] : Positive To toggle the Sign, press the SET button.
␣ If the Sign you set is Negative, you will program 3 digits (max value: 99.9) If Positive sign was selected, you need to enter 5 digits (max value: 9999.9)
␣ You need to enter all digits (including the leading zeros), e.g. enter -07.5 if you want to program -7.5%
3. Press SEL to proceed to the first digit of the calibration value. [n] (next) is shown, and then the value of the first digit will blink. Press SET repeatedly until the desired value is shown.
Repeat this step until all digits are entered.
4. After the last digit has been entered, press SEL to exit from programming mode. [o] (over) is shown, and then the unit will display the programmed digits in order, just like any time ignition is turned ON.
If you will tell me what mods you've done I should be able to get you pretty close with some math calculations for the correction percentage to start with.
As people fine tune their correction factors for known modifications I'll pass those on with the purchase.
Hope that helps.