Either will ride better than a 25 AT. I would consider the ride to me comparable between similar sized AT's. Both brand boats ride great in the rough.

i know that length and weight will play a part but man this thing rides good for 25ft. also considering the 358 too... I really need to get in a 31 and check it out.

A 31 with the right setup will be low 80's

If your still in the market I have a clean 1999 31ss that I will be putting up for sale soon.

I can vouge that 40-fountain's Sonic is extremely clean, if you only knew how anal this kid is when it comes to clean and organized

One of the cleanest!!!! Going bigger Tony??

Yes thinking about selling ours and possibly go bigger

No comparison in rough water between 25 at and 31 sonic, 31 sonic is a wave crusher in the most true sense of the word. Not the fastest boat, great lines, paintjobs, creature comforts and attention to detail. Out all the time with another 31 sonic twin 496 ho's, he loves the boat. Sonics are a load to trailer if that means anything.