Using an ultrasonic cleaner to clean bearings?

Londonskaters.com seem to thing it's a good idea...

http://www.londonskaters.com/review-ultrasonic-cleaner-cleaning-skate-bearings.htm

but if you have to do it the old fashioned way, then they also have a guide...

http://www.londonskaters.com/article-speed-skate-bearing-cleaning.htm

But then maplin are doing some cleaners for £25, might be worth a punt?

http://www.maplin.co.uk/Module.aspx?ModuleNo=223108

hmmm.....