I've seen a few reviews on here saying there is too much slop in these hinge dogs, so I ordered with a little nervousness, but the flexibility of set up of these (and the price over the quad mft hinge system) won me over. I'm so glad I did: there is absolutely no slop on my setup and I have used them up to the limits of their range notching some 90mm deep stock perfectly well. There are so many variables that could affect this, so I'll list my specifics here: 18mm birch plywood top with holes using Parf system v2, reamed with UJK combined chamfer-reamer, using Mafell 800 and 1600 tracks. Everything tightly snugged up with allen keys, including the grub screws under the track. There may be a very slight tolerance range on the outer dimensions of the female bases (could be the rubber O rings, anyway in the few hundredths of a mm) as some are a very tight fit in some of my holes, all freshly reamed. Not really a problem, as a loose fit would be much worse. A few minutes making a wooden dowel tool to force them out from below solves that. The fit of the male dogs into the female dog bases is amazing: you can almost feel a vacuum. Certainly no slop there, and it solves the fight with my old v1 rail dogs getting the rail in and down and up and out. These are a pleasure to use. I don't need them because of cramped space, but I use a cutting station in the middle of my workshop and prefer the stability of a low side hinged track rather than the vertical end one of other hinge systems and I like the inherent access from all sides. I suppose all the different hex key sizes could be annoying, but get yourself one of those cheap interchangeable driver sets and problem solved. I don't really understand the point of the indents on the dogs for different thicknesses of material, since no wood comes in the stated dimensions, at all, ever, but if that floats your boat, who am I to stop anyone, though I imagine it ups the machining price? Anyways, brilliant product guys, keep it up.
Fast delivery. The fence is really good. Specially that it has a scale.
Only disadvantage that the UK is not in the European Community and I had to pay almost 40€ customs. This is a lot and makes it quite expensive although it was a eastern offer.
A high quality tool delivered in very protective packaging. A delight to use.
These Hinge Dogs are perfect and well made. This my second set, got my other work bench