The 348 you'd definitely have to be careful with the edges ( buttress' etc ) as I came across a few where they'd been polished down to the primer - this was more so on 308/328's admittedly.
360 paint seemed fairly resilient, but I never used anything much stronger than SRP by hand when I prepped them.
Chances are that both have had some paintwork, the 360 frontal for stonechips etc and the 348 who knows!
Peter