The difference will be knee and foot room. The hull shape is exactly the same in the two configurations. If you have around size 10 feet or smaller you should have no problem with the lower deck.

: I'm sort of stuck on the following. The Night heron has two configs, high
: decks and low decks. I'd like to use the low decks, but I'd like to be
: sure that I'd still fit well, snug is no problem for me. I'm 170#, 5'7,
: waist is 32, hip width is 14 inches. I'd just like to hear from some
: people on their thoughts. Thanks.