do seem to glide better with some load... they make great campers due to their large volume. I bet your 170 could swallow up a lot more than 75 lbs, I've loaded that much in my 140 before.
Has your wife paddled the low-volume Tsunami 135? She's probably the perfect size for it, that little boat is quick for being under 14'.
Kayak Motor Kit
PFD's (Life Jackets)
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