My Buffalo (Tech7) magnetic bag seems to sit fine on both my curvy and pointy, although I have been considering a Bagster option because I have marked my curvy using this bag almost daily for two years. Not really scratched, but well worn at the head where the strap points rub. I never strap it mind, so these just sit there right on the paintwork.
Its this model, although I didn't pay that much for it. Is a really good compact bag.
http://www.mandp.co.uk/productinfo/5...uggage/Buffalo