I'd recommend custom or restoration. Modern brushes in the shorter range are excellently designed. I've been far less impressed by modern offerings in taller designs.
Long Handle Brushes
- Thread starter rockero
- Start date
Thank you Rockero! 
Rudy vey will make you one and you will have the knot you want;
http://shavenook.com/thread-custom-boars-by-rudy-vey-and-bob-quinn
http://shavenook.com/thread-custom-boars-by-rudy-vey-and-bob-quinn
