Poly ropes are temperamental to weather and use.
I can't give you recommendations on brands because that's as individual as underwear preference in my opinion! Lol!
I don't use the same rope I practice on the dummy with. Roping the dummy is good practice of course but it will twist your hondas. Also how are you storing your breakaway ropes, do you have a can?
And like I said weather will change how your ropes feel, the cold will make them feel like over cooked spaghetti noodles.
I found sometimes leaving my noodle poly ropes alone for awhile(months even!) or lay them coiled in the sun for a couple days will bring a little life back.
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.
PLAYBOYS OKIE CODY "HOOEY" 10/21/2019