You got it in one Tout,
Sporty bikes and muscle bikes sound better in stelth mode IMO, but a V twin Cruiser should be loud proud and sound agressive.
Sports bikes are like the pretty boy in the pub thats got all the cash in the world with a small pecker and very rarely shouts..................Crusiers are the blokes with short man syndrome, near anough like lepricorns cute and can be easily put into a girls pants, loves to shout dance and fuck everyone else off