I stand corrected...I DID mean the TGN 2-band finest. If your taste runs to softer knots though, a TGN silvertip Grade A set at a short loft is a great brush as well...
I suggest to keep the knot in the same dimensions as the original.
It might be tempting to have a knot as large as possible, but I like it the way it was.
This must be a 55 of some decades old, I guess?
Measure it, but from a quick kglance I'd say a TGN 20mm?
Yes, I agree. I think TGN has a 20mm/45mm I have my eye on. I wasn't trying to come off as though I was trying to jam in a 30mm beast. I haven't measure it with a caliper yet but, I think its about 20mm with a 45mm loft. I guess my next step is to carve the old one out and measure the hole.