It sounds to me that Revo need to rethink their trial software.
The main reason why Revo have such a lot of fans is because they are good. Look at the history of AmD: They used to be Numero Uno in the tuning world but staff changed etc and they went downhill before the recovery they are enjoying now.
As Sy says [so tempted to write "Simple Simon Says"]: A big factor is what the individual likes best regarding power delivery. Both myself and my passengers enjoy Revo's power curve.
I have no direct experience of Custom Code but have heard people who's opinions I respect call it Custard Code. But it's right that we each express our opinions no matter how enthusiastically and you, Ian, are always enthusiastic! Bless you! [I wonder if being enthusiastic has anything to do with having a red car
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