I am a bit surprised at this. My
MCS's vice, if it has any vice, is that it understeers too much. On the track I can't get it to oversteer at all, unless I try really hard to provoke it. I think this is pretty much the experience of people here - many people fit a stiffer anti-roll bar to reduce the understeer.
It sounds like you have some geometry issues now - who did the work???