Any Trade quality Eggshell, Satinwood, or Gloss would be ok, just bear in mind that all oil based paints will yellow after time and the new 2010 paints are even worse.
Waterbased and Acrylics are not subject to yellowing but they tend to be harder to achieve a quality finish. If you do decide on the water based you will you will make life easier for yourself if you use a synthetic bristle brush such as Purdy.
"Promo" was a reference to the fact that they (ie. Purdy) do boxes.
Wooster don't.
The individual cost of Wooster and Purdy brushes are pretty much the same though. I don't know why but, Wooster brushes in West London, north of the river are hard to come by. I get the impression that the Area Rep for Wooster is making higher minimum order requests than the Purdy one.
I am considering buying them direct from the USA if I can work out a way of offsetting the shipping costs.
My understanding is that Wooster sell far more on the mainland USA. To be honest I am not surprised.
To date they are the best brushes that I have ever found. I now treat the Purdys as semi-disposible brushes. The Purdy is better for cutting in emulsion but the tramlines on (MDF) are much more pronounced than the Woosters.
Even the rollers and extension poles are the best on the market.
The other downside with the wooster brushes is that they are the wrong shape for the brush mate 4 and the 4" brush is too big for the Brushmate 20 (the bristles touch the bottom when in transit).
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