yeah, I held the monofilament vikan down in south wales, I didnt like it very much, the ionics new multipole brush is better, it has 5x the scrubbing power of that because it has shorter and sharp bristles in the middle and wider splaying ones on the outside.
NWH, that one on ebay isnt a fake, it has the same amount of tufts of bristles, i comapred it to v8edd's pictures, it has the same amount. they are identical. I don't know why your thread didn't fit though. My thread fitted but it was a bit messy ( as in the thread was all flakey (sort of ) ) Perhaps they were seconds and a worker nicked them or they were given to a worker to sell on.
Oh yeah my jets are 2mm, or at least they appear to be, perhaps your one was a second with 3mm jets.
I emailed Ionics the other day to ask a bout there new multipole brushes, here is what they said
"Dear Luke,
Yes, we do have new multipole brushes, the bristles are made of stronger material hopefully making them last longer with out curling up, very similar material we are using on our commercial brushheads.
They are £14.50 + VAT + postage of approx £3.00 total - £20.56
Regards
Patrick"
then here is there second email
"Luke,
The brushes dont come with any pipes or fittings, you will need to screw your existing angle crank into the brush head. You have a choice of jets, the pencil jets are 3mm jets and the commercial jets are 2mm jets."