I now have tucker brushes on all my poles, and would never use anything else.
Yes, they are a tad heavier than the SL Brushes, but the cleaning power, and longegivity win hands - actually I prefer the extra bit of weight an advantage.
Pricey yes, but dam fine brushes.
I had a someome turn me up some aluminium collars to glue into the tucker jet holders , so that I can use a standard pencil jet.