I use a turboswing ski bar....not cheap...
I understand there is an inexpensive, "y" rope device that attaches to those pontoon points....Overton sells them, I think..? ....
I used those points on my toons using a single rope for each for some years but as the grandkids got bigger, The flexing back and forth broke one off at the toon ...simple reweld, but I got the turboswing......
to add, my toon is an '06 and I've noticed newer toons have a thicker, more robust attach point than what mine are.....so maybe you'd be just fine.....just understand, mine broke at the original weld...I don't know how much thicker new toons are compared to old ones....
I looked at the stand up ones ...no room on my aft section, but wouldn't get one anyway because of the torque force requiring hefty backup plates underneath....