[OXO cube]

does anyone else use this for their guide braids ?
it is a very soft braid and seems to work well 
it is far cheaper than the after market braids from the major companies 
i try to use the un-fluxed type , but it seems to be getting more difficult to find 
is there a reason why 'fluxed' or 'no clean' wick shouldn't be used ?
does it not make much difference ?
is it worth trying to remove the flux from fluxed wick ?
is there even a way to do this ?

Kev