Never claimed any superior knowledge, the PRINCIPLE applies to ANY car.
When you run a low final drive ratio (like 3.5, excuse me, 3.46) combined with a low 1st gear ratio of a T5 and slicks, your looking to break "something". Which "apparently" resulted in BDR strengthening the half shafts and doing away with the expensive M3 option. So, maybe it's OK now?
I wouldn't bet on it, with ANY car. That ultra low final gear ratio (3.5 and a T5) with slicks, decent horse power and an LSD is a recipe for breaking something. Like, half shafts!
Maybe Jim's car is a typical BDR "one legger" rear end?