Sort of off topic but not really.  Finished my first ibl with vue last night.  This was a full (yet small and basic) scene.  Saved it out with 4000x2000 jpg, exr and hdr.  The quality of the picture itself wasn't what I was hoping.  It was a tad washed out when I put the jpg on the reality ibl sphere.  The upside was that it rendered really nice.  I was getting double the speed from this light than I have out of other ibl's I've used.  All three files together come to about 90mb in a rar file; so, I'm not really sure where to put it to enable others to download it.  Anyway.. here's the render I created using it....