its not a tune! its fettling
Call it what you want but definition of a tune is to make fine adjustments to (an engine, machine, etc) to obtain optimum performance if you want to play on words and even Darryl called it his tune
it is fettling end of,fine adjustments is right,re-greasing,de-buring,polishing is home DIY fettling.
there is no lathe work involved in Darryl's tune,which all the professional tuners do,hence it costing ££££'s
what darryl has shown is his way of fettling,i may stand corrected "but i doubt it" this is no where near as much work that a professi