I'm not a bonnet vent kinda guy myself, but I'm not sure about the back vents... they're a bit square if you know what I mean. Maybe you could round them off, make them more subtle?
I'd prefer the bonnet to be a little more subtle.
I'd love to change my own bonnet - they seem to weigh an awful lot. I presume these are fibreglass Jay? - and would be priced accordingly.
Do you know what weigth difference there is between this and a standard bonnet?