My thoughts, just kind of spit balling here.
I'd add another big strong point of the 7x over the 5 is how much more ventilation it has. The whole thing is basically made out of mesh, the same type as racing suit liner.
I think it also depends on what you wear on the street. If you're wearing a full race suit for weekend rides, 7x. There's suppose to be new suits in fall of 2024 where the 7x will install between the liner and suit. I think the Tech-Air 10 has this ability with the Racing Absolute suit, but that's a $4K suit and more than I'm willing to spend, and the problems with the 10 are also a consideration.
I don't know if I'd put too much weight on serviceability for purely street riding. If were talking about crashes with other vehicles, there's an insurance component to figure in, delays, getting estimates, waiting for parts, service time etc. There's also a lack of run offs on turns. I'm of the opinion that a street crash has to the potential to be much more catastrophic than a typical track crash, ie a low side. I think there's going to be more lost riding time with a street crash, so waiting for an airbag service may not be a huge consideration.
There's not a lot of structure to the portion of the back is below your beltline on the 7x. It's very flexible. I think that extra length could be more of an issue with a cruiser.
If you have the means, you could always check the return policy, order one of each and after you've had them in hand return one and keep the other.
