I went with the vector for the interior shape. I am almost certain that the profile is a little more oval than I really need. I have heard of the vectors being a little more oval than expected, but not as much as the profile. That should serve me well. I knew up front about the non-removable liner...that is unfortunate for such a pricey helmet. Regardless, I am willing to overlook if it comes close to meeting my expectations which are rather high for this helmet. I have done a tremendous amount of research on helmets in general. There are pros/cons to just about every brand/model you look at. Factors I considered: fit, airflow, noise, space for helmet speakers, liner/cheek pad performance for wicking away moisture, weight, balance, visor function and field of view and finally...overall comfort. I am certain I will need different cheek pads, but I'll assess that once I can validate fit on my head. I'll swap out cheek pads if needed.
Chris :spyder:
