Having spent enough time actually using both methods here’s what I noticed.
This is comparing one cable clamp to water pumping at around 4”hg.
The sensation of stretch and internal pressure is the same.
Minute for minute the amount of edema is the same.
The incidence of red spots and discolouration is the same.
The post workout feeling of fatigue/soreness is the same.
The cumulative negative effect on EQ is the same if no rest is taken.
The lack of results after months was the same.
That’s actual experience rather than speculation.
Does it mean neither work ? No, just didn’t work for me but I think they both increase internal pressure, this nonsense about a partial vacuum just sucking on the skin needs to be laid to rest.
Did you ever use both at the same time?(or one after the other, 5 minutes this then 5 minutes that..)