You cannot make this decision with out testing them both on the water
having said that:
You can't go wrong with the Tarpon 160
it is a bad azz yak and it is fast
I test drove it and loved it
It was on the top of my list when I was looking for a new kayak a few years back.
Then the Trident 15 came out
The decision was easy for me,
at 6-4, 240lbs the T15 fits me perfectly
If I had to buy another kayak right now, the T15 would still be my first choice, .
But I reserve the right to re-test drive one of them peddle boats
and if I get comfortable in one...
I am going to the dark side