Got antsy....and called. Westland customer service was very helpful as they brought up both patterns and checked to see what was different -- as they were also confused as to what the descriptions were actually referring to. The dimensions are exactly the same, but there does appear to be a slightly pointer crease at the windshield on the MOO182. Both were said to accommodate a swim platform. Tower cutouts were in exactly the same location on both.

Moomba Mobius LSV 20 W/OZ Tower (model number MOO185) -- has tower cutouts with loops and velcro to cinch as tight as necessary.

Moomba Mobius LSV W/Oz AND V2 Tower I/O (model number MOO182) -- has tower cutouts with cuffs with elastic - well-fitting, but not able adjust tightness.

In the end, I think I'm going with the first one -- the MOO185