Slam Specialties RE vs SS bags?

[Mackie]

I want to bag the rear of my `63 C-10. When I bought the truck it had a nice stance but it had been done by torch heating the coils and the ride sucked. I rebuilt the front end with drop spindles and new coils.
For the rear I'm looking to use the 7" bags. I don't want to lay frame or hop the truck. It's a driver and I carry reasonable loads and tow sometimes. The plan is a simple system with air lines running to a convenient location with schrader valves for airing up.
I've read criticisms of the new SS series but they're a good year old and wondered if it was early production bugs that got worked out or what.