Thanks. These are a staple blade I keep a stash of too.Have you tried Astras SP btw?
Unuta77 is my supplier.
http://www.ebay.co.uk/itm/100pcs-VO...682175?hash=item2eda2a03bf:g:4u4AAOSw44BYMDQj
superb blades, don't be put off by trying other russian made blades.imho most are excellent.