At 215 He would be thinner than Haye. Draining that low after being a 260 lber recently would probably damage him badly ala Riddick Bowe.
247 would still be too heavy, but it would not be that bad. Over the last two years, Solis has weighed in at 259.5 lbs, 262.5 lbs, 271 lbs:scaredas:, and most recently 260 lbs against Barrett.