Have you tried adding multiple brush adjustments? The results are accumulative you know...
Yes, but by the time I do that I can import the file into CS4 and brush as much "blur" as I wish and ultimately get a cleaner file.
It just seems to me that if "lens blur" or really what we're trying to say "bokeh" was an original objective then we'd not only have a much greater range of adjustment, but we'd be able to feather it out from the edges to duplicate actual bokeh.. Sure it's a nice feature, but not nearly as useful as it could be if designed from an original feature perspective.
IMO LR is a great tool, but this sort of 'half way' feature diminishes more than it adds. I'd rather it do one thing right than five things 'kind of okay'..
On that note, I think the new raw engine is awesome.. can't wait to convert over to the release version.