Summer is so busy, I'm usually more than ready for it to end. I've always used Chiaogoo fixed needles. Not sure if they'd solve your problem with the join or work well for magic loop (I use 9" needles for socks), but I've never had any problems!

I think the worst part is that its so hot, I just want to nap all the time. Then I look at my to-do list in horror 😭 100% waiting for fall now! Ooo, duh! I use ChiaGoo for sweaters and washcloths, it didn't click with me to try for socks! Their needle tips are top tier and the cables are nice. I'll def get one to try out. I started a sock with a pretty mint tweed and the snagging made me meh and I stopped >.<