Another PT260 thread - blades?

[cowfoot]

I swapped out the blades that came with my Record Power PT260 a while back for some Xcaliber ones from eBay.
Those are now seeming a bit blunt too, so a couple of questions -

Are the Xcaliber disposable (they seem pretty flimsy)?
Can anyone recommend a decent place to have the originals sharpened?

Finally, is it worth me getting another set of the originals so I can keep a sharp pair (by sending them off) at all times?
I don't like disposable anything, basically!

 

[MrDavidRoberts]

Surely sending them off to sharpen would cost much more than to buy a new pair for the 14-15pounds they cost on ebay?

 

[cowfoot]

Looks to be around £12 inc postage here -

http://www.prosharp.co.uk/services.asp?c=s

Anyone used them?