Hello... now I have always wondered this... perhaps you could explain this to me if I am incorrect.... The stability control uses the functions of the ABS modulator to apply individual brake pressure to each wheel and also uses the function of TCS to reduce power to the driving wheels if need be. Now, I can see how the DSC would not be affected in a EDITed if you were off the throttle and had to do a rapid steering maneouvre as only the individual braking would come into effect... but what if you went in too fast into a relatively sharp sweeper (individual braking part now active) and then also applied more throttle to power out? (TCS part active) EDIT** In reading the above sentence it would seem that the TCS and DSC operate independent of one another... in which case, yes, the DSC would not be affected... LOL, lets just discuss the TCS then... Now if I understand this correctly (and I could be wrong) there must be a table somewhere for the traction control part of ABS/TCS system which states something like how much timing to retard given the enigne rpm when wheelspin is detected. I'm also certain that this table was designed around the stock engine output. E.g. if wheelspin detected @ 2500prm, take out 25degrees of timing - which may work fine for a stock motor, but with a big HP engine, -25 degrees may not make much difference and is not enough to curb the wheelspin. (I do know that the rear brakes are also used, but only at speeds < 40km/h so as to not generate excessive brake temperatures). I'm not sure about the BF's, but my EDITed BA has the "P2106 ETC Forced Shutdown" 'fix' and yes, the TCS doenst shut itself off anymore, but neither does it do anything useful to control wheelspin! I remember reading a thread somewhere that you said you had the TCS fully fixed, even on HUGE Hp cars - Brian's car (BCL) was the case in point.... Now I know you don't want to divulge trade secrets, but if the EDIT S/W doesn't have access to this area of the PCM, then how can you actually fix the TCS? (does the edit have access to this part of the PCM??) Cheers, Ross