I can say a Ram 1500 with 16 ft 7000# dual axle trailer, and the Ck2610 is a non-issue. Stopping, mild hills, 60-65 mph, and trailer breaks not hooked up (haven't got around to adding controller to truck). Now, in an emergency breaking situation, is the stopping distance going to be greater, yes, that's physics; so increase your follow distance from 3 seconds to 4 or 5 seconds. Drive smart, and don't forget its back there; but other than some mild squat; you pulling and normal stopping, you really Could forget it's back there.
There is really two crowds on trucks and pulling; one that pulls a 12000 lbs skid steer trailer combo with a GMC Canyon, or a Ford Explorer, and brags about it; and the second that claims you need a 2500-3500 too pull a landscape trailer. The truth is in the middle. If you're pulling 7000 lbs all day, 5 days a week; sure, upsize; but if we are talking 4 times a month, less than 65 mph, role with the 1500. Honestly, are you reducing the working life of the 1500; maybe from 300k too 250k; Unless you like to drag race red light to red light. Ask if that slightly greater wear and tear is more or less money than using the 3500 for your everyday use.
I would be more concerned with making sure your trailer tires are in good shape; as no matter the tow vehicle weight; you blow a trailer tire out with a good load, your in for a sketchy ride.
Edit: Unlike me, do the smart thing, though, get the trailer brake controller, maybe get a higher load range tire on the 1500; ect; or "Do dangerous stuff carefully". Be smart about your tie downs, check trailer tire pressure and truck tire pressure; its ok to run the speed limit, or 5 mph below; people might get mad, but they will get over it, or go around...