-- Last Updated: Jun-05-12 10:08 AM EST --
I think for where you're at, sharing a paddle w. a teenage son who will only grow taller, you made a good pick.
My 5'11" guy is, for now at least, not interested at all in SUP, so no point me having an adjustable paddle.If that changes, he would need his own board and paddle anyway. We're just that different in height and weight.
An adjustable features is always going to add weight over a fixed one, and have one more fussy thing to get stuck. I been there :)
OTOH some ppl who travel are going for 3 piece paddles so that a SUP paddle can fit in luggage. Depends where you are and where you wanna go.
When you can go to your "fixee" you will enjoy the weight savings in more ways than one :)