The Vikans do scrub well but have too many bristles & are too heavy for me to use these days.
The nearest you'll get to your rectangular Vikan IMO from Gardiners is the NEW 0-degree DT semi-flocked. This is in fact the original SL splay which they have just reintroduced due to customer demand & my favourite all time brush!

The semi-flocked Gardiner brushes are really nice, the bristles kind of melt onto the glass like the flocked Vikan, only a lot lighter.
