Looks like everyone took great care of getting you what you need! I wouldn't expect anything less from R2R
One thing I did want to point out (sorry for not being more specific) is that I think
@ngoodermuth meant to suggest shooting for a PO4 level of .02, not .2 (lol the zero is easily forgotten, but very important). Due to the fact that it is such a small number I use the Hanna ULR phosphorus checker. It is a bit pricey, but IMO it's well worth it.
Have you had a chance to take a look at any of the material?