i prefer the extreme brushes but the Mrs works with me she prefers the dual flocked with the smaller footprint, but for years i liked the single trim Mk1 from Alex and the tucker brush, but now its the extreme all day long for me, i do think its not the case of whats best its more of a personal thing when it comes to brushes, i found in my garage this morning a old dual trim mono and a single trim in a bucket, i thought i thinned them all out but must have missed some, i even found a old Bentley brush,