I have 185 front on 6 inch rim, 205 rear on 7's. For me wth a nice heavy Zetec (aprox 200 bhp) it gives a nice balance on 48r's. Mild understeer easily balanced with a bit of right foot
or trail braking into a tight corner but have not been doing many trackways for a while.... I am looking to change the springs over the winter as the car feels a little over damped on bumpy roads.