Does anyone here use the Arkel Switchback? I ran across it online & it looks just about perfect, but I'd like some real world feedback if anyone currently uses one. (It's a backpack that slides onto a seat mounted rack), which is basically what I carry now, only I wouldn't need to bungee this one down, as it has a built in fastener to attack to the bike. https://www.arkel-od.com/us/all-categ...witchback.html

No experience with the switchback, but a few thoughts:

1) I am a huge Arkel fan, I have several of their bags and am happy with them. They are good people who make a good quality product and provide great customer service.

2) I am not sure about this concept - if I were to use it for commuting, it would have a fair amount of weight in it, and I'd rather have that weight closer to the ground to help with bike handling.