Hi Cabby
No import duty

- in fact, I've never had to pay import duty on any blades ordered from Mike. He annotates the envelope as carrying 'saw blades' and that seems to be sufficient. VAT, of course, is not chargeable although local American tax is due and is included in the price. Postage cost $5.00 for 4 gross of blades, which is a bit pricey but well worth it for the speed of delivery*.
I don't know if you've used FD blades before, but they tend to be much more aggressive than other types. As a result, they have more bias to the right than normal but a lot of scrollers learn to compensate for this. Where they really score is in their durability. I've been cutting maple lately and found the FD Scroll Reverse lasted 3 times as long as the equivalent Olsons and Hegner Pebeos.
Gill
* WiZeR - let's hope yours arrive tomorrow. They can't be too far behind mine.