Hi Arthur, i have the ms-ibc with the gt28rsr and a flea map.
I have 4 different settings (don't use all 6 yet) depending on how i am driving. What me and Leighton did notice on the rollers it made more power with open loop then closed loop.
My settings for 1.25 bar is - set 50, gain 30
1.4 bar set 57, gain 30
1.47 bar set 62, gain 28
1 bar ( boring mode
) is set- 40 gain 40
I can't run my 1.47 bar much
as get slight clutch slip in 4th and 5th and no traction in 2nd.
Hope these help abit for you, i know the gizzmo is abit tricky at first until you get used to it, but its a great bit of kit.
Ash