just weighing up the pros and cons between 160 and forged. Is it as simple as people tune on standard pistons and get failures. People tune on 160 pistons with generally the same state of tune say up to 190bhp, and people who are tuning for say 220bhp always specify forged. Everyones happy.
Have people gone for the 160 pistons then carried on to 220+ bhp or whatever and the engine has lived happily ever after (sort of)
Does that all make sense?