I would like to add my thoughts on the Tubby 2.
I've had mine for a few weeks now (26mm knot and loft of 54mm). Similar to
KRF1963 I was slightly dissapointed with the brush when it arrived. It wasn't as dense as I expected it to be. In fact I thought the 22mm NF2211 was similar in density. I done a few test lathers with my gillette blue bowl soap. Compared to my NF2211 it didn't pick up as much soap or lather as well. I'd give it the full test for my proper shave the following morning. Using a few creams, Coates LE, Bluebeards revenge and Nannys soap, I wasn't that impressed. I put it in the for sale section.
After an offer for the brush and warning from a fellow member on here about sending to Spain, I never sold the brush.About a week or so later I tried the brush again.
I'm not selling it now. Because it's slightly larger it need a little more product to produce a decent lather. It has probably lost 3 hairs in that time. 2 when I received it and ruffled it with my hand dry, then 1 when using Nanny's Soap. My NF2211 still loses hairs recently, luckily not at the same rate my own head does.
In conclusion, I would say this is a great brush, if your disappointed to start, give it a little time. I've never tried the simpsons chubby to compare. At this price it still represents good value to me. My favorite brush still remains the NF 2211, which I would love to try in a larger knot size with a similar density to the present 2211.