 IM wetsuit sizing and full vs long john?
Length is less of an issue then width, especially around the shoulders
and the hips where most of the motion will take place (especially the
shoulders/armpits). When I bought my IM Stealth wetsuit the perosn at
the store tested the fit by pulling out the (closed) zipper away from
my body and see if sort of "stuck" to my skin. There needs to be some
space but not too much. | 
