I'm just coming off a 4,800-mile trip through the remnants of three hurricanes.Through Texas,New Mexico,Colorado,Utah,Nevada,California,and Arizona I experienced nothing funny as far as directional stability.
I sense a bit of understeer,since I can't lower the diffuser as low as I'd like,which means my center of pressure is a bit forwards.
In strong crosswind there is just a push.You just give the steering some constant nudge.In gusts,you nudge it a bit harder,but nothing unruly.
Goro Tamai,of MIT reported on the inherent stability of the fastback,with zero lift easy to achieve in crosswind and gust.
The 3,800-lb T-100,at 130-mph,generates -30-lbs at the front,+22-lbs at the rear,essentially 'zero' lift for 3,800-lbs.
I wouldn't be concerned about it.
