Sorry for the low reply! I'm planning to use the single etched ones from John Haynes -just need to work out what to use as the rail. Looking like 0.2mm nickel silver at the moment - as used by raflaunches on HMS Humber here http://www.modelboatmayhem.co.uk/forum/index.php/topic,51385.50.html
I've used them for some of the inboard railings which are a bit more substantial but I think should be OK. I will airbrush them to try to reduce the effect of paint making them look more bulky
Another thought I had was to use fine thread which would then be painted in matt varnish to make it a bit more rigid and get rid of the 'fluff'
I think this will be the last job though - next is to do the boat handling booms, rigging and ladders. Need to get the surgical microscope out...
Thank you for all the kind comments, lots of excellent builds going on the forum at the moment. The Velarde is a fantastic model - the covers are grey on the Dean's showroom one. As a slight aside I also put one of these together in 1/72 as a bit of a break from 'proper' building!