Hi Stephan,
It sounds like same version as my Heliboard.
When I received my heliboard P1 was shooting JSB 10.34 at 990 fps. and already at P4 The JSB Knockout slugs was shooting way to fast.
You can have the values to enter in the Heliboard from Jack. The preprogrammed Heliboard that Soren Drost received for his RedWolf GP .177 is well graduated over the 12 programs. His Max. power level P12 is good for 20 and 22 gr. Zan slugs and P1 starts so you can shoot 10 gr pellets.
My programs is just custom calibrated to the pellets / slugs that i shoot.
If your Heliboard is one of the newer versions - then it has integrated Auto interpolation so you do not need to test speed at all of the 20 pressure levels.
I can do the same when test shooting with my Heliboard. But i need a computer with Excel to calculate the values in between - and then enter these values in the heliboard manually.
You need like for your 13.43 to test fire and find values for like pressure values: 160, 190, 220 and 250 bar Then you can either via the spreadsheet you received with the heliboard or with your newer heliboard do an auto calculation to fill in the values between these pressures.
I will try to read out the values from Sorens HeliBoard - next time I see him when I have them on paper - I will share the 12 programs values with you...
Best regards