Is there any difference? Probably. Here's a comparison video to help you decide.
Ludwig reissued exactly this for their 110th anniversary last year, in 6.5 and 5" depths. https://reverb.com/p/ludwig-lb407xxc-110th-anniversary-black-beauty-6-dot-5x14-8-lug-brass-snare-drum-2019
The less lugs, the more the ability the drum to get a deeper sound/tuning. Has something to do with the physics of tightening the surface area of the drum head. I really like the 8-lug version as well!Yeah, both sounded great. The 8 lug seemed a little bigger / fatter sounding. Wouldn't mind checking one out.