My initial gut reaction was the same as that voiced by sparkyx: will a build-up of lymph help?
However, as you said, Bamixgee, perhaps you’re on to something new. Old theories should not stop anyone.
If you feel comfortable, keep trying your Juicers for 4 weeks, keep measuring, and see if you get real growth. Just because pumper’s lymph may not work, Juicers still might. Perhaps you’ll get rocket growth!
I will keep you all informed of any growth over the next 4 weeks, I am currently a firm 5.6/8 in girth, I do not this this exercises will add any length, but I will let you know if it does, all the best Bamixgee.