I thought there might be some interest on this subject on the board, so here goes. I would like to say everything you read from this point on is just my opinion. I'm not willing to argue about anything, I'll just call'em as I see'em. I'm not an expert but I know what I like on my face. We know what George Bernard Shaw said about generalities so that's where I'll start. Generally speaking I feel most boar brushes are over lofted from the factory. From left to right - 1. Antica Barbieria Colla - I ordered from a US firm but the brush was drop shipped from Sweden. Nicely sculpted knot with fine looking bristle. This brush came in at 60mm by a hair under 28mm,measured. I don't care what the specs say. It is what it is. 2. Thater boar - again a beautiful sculpted knot, bulb style. The measurement on this brush are a hair under 60 mm (a plus as far as I'm concerned) by 26mm. I'm disappointed in this brush. For the price I don't expect a glue line around the knot weeping into the bristles. It really won't bother anything and I can probably remove it. I wouldn't expect this on a $10 boar much less one for this price. Other than that it's a beautiful brush. Brushes 1 & 2 cost more than my most expensive Shavemac knot. Neither brush has seen water yet but I'll soak the ABC today for tomorrows shave. Very fine bristle on this brush also. If your a Thater fan and consider this a dig, to bad. It is what it is, I guess they shouldn't have sent the brush out. 3. Mondial - originally sculpted nicely with fine bristle, 25 x 60mm. This one comes in very close to the Thater dimension wise. I've used this one a few times and it's different than what I'm use to. I'd consider it a little on mushy side almost badger like. To give this a honest evaluation I need more time. Again, it's not bad just quite a bit different than what I consider normal for a boar. 4. Homemade brush using a Semogue SOC knot. Lofted at 52mm in an oversized hole. This is one of my working brushes, I like it. 5. Homemade brush using the big Omega knot, again one of my daily brushes. I like it. I do a couple of versions of this which is more dependent on hole size than loft which I'll usually keep somewhere around 55-57mm. 6. Zenith 26 x 57mm, I like this brush. This is best factory boar brush I've ever bought. I have not used this brush a lot so time could change my opinion but I don't expect it to. In the upcoming days I'll make a few comments on the newer brushes 1,2,3,6. Have a good one.