Seeking Opinions on 210 & 230 SLX Looks like the 350/Alpha1 and 5.0/Bravo3 options are somewhat comparably priced, within $800. Having never sat in an SLX, let alone taken a ride in one, anybody care to chime in on which would be a better option? Specifically for watersports. Also, does the external exhaust option (on the 210 or the 230) have much of an impact on storage space under the sunpad or under the walk-thru? Does that have any impact on performance, or just visual and sound? Thanks!