Well I went with the same dilution and time for the Rollei IR 400 in their RHS developer and it worked out fine, thanks Andreas.
I am surprised at how much of an infrared effect this new Superpan 200 film has produced. Here is a scan from a quick 10x7 RC print I did last night from a roll of 35mm film taken on a sunny day in September with an R72 filter.
I think the price did go up after its official launch but you can get it for €3 per roll of 35mm if you buy 10 rolls from macodirect, which is where I get all my Infrared films. I don't know of any UK suppliers who have it. Its not listed on Silverprint or Retrophotographic's web sites.