Triumph Rocket 3 GT 221

If you are not bottoming out the shocks on any bumps, then you don’t need to add preload. You can stiffen up the suspension by increasing the rebound damping.
When I got the bike the bumps were pretty harsh. I could not tell if either needed adjustment. So I set the suspension to the softest setting on both preload and compression on front and back. I noticed improvement on all bumps. I have taken it out on some nice curvy roads and handling seems fine. I am curious about your suggestion though and may increase rebound damping a bit to see if the ride gets even smoother.
 
Not sure about all of that. I have had it at the softest settings for over two weeks and handling is fine. Any stiffer and my back suffers on Nebraska pot holes. Thanks for advice but softer settings are working for me.
That is just fine, but (based upon your "softest settimgs") be ready for troublesome wallowing if your speeds in curves increases.
 
OMG...That is a fantastic deal! You are getting the exact bike as a 2024 for at least $6K less!