Never been in one, but have been looking at a new 721 with a 4 merc 250 pro xs. Speed, fishability, comfort, stable with the trollering motor down, dry ride? Looking at one with a c channel trailer, and stainless steel fenders. Read a lot about the trailers so thought I would up grade it. I'm currently in a 2015 20 trx.. I'm pretty satisfied with what I have just looking to upgrade. Thank you for any input.