Hey millertm. I have some experience with AN pH perfect. I use it in my system. Ice cooks his soil and has some other nutes that he uses. I can tell you that my pH before my ro filter is 8.4 with a PPM of 154. After RO it is 6.2 and 17 PPM. I add the AN nutes and it goes down to about 5.8. However, if you take samples through out the day, you will see the pH rise and fall. But for my current grow, which has used nothing but AN, I have not added any pH up/down. The whole grow. After a couple of weeks I get problems with keeping the pH in range so I have to do a res dump. That has been my experience. I can say with out reservation, that I feel the RO filter was one of the best things I did for my garden.
Ice, sorry for jumping in like this. I hope you do not mind. Just thought I would share my experience with millertm about AN and RO filtering. BTW, keep your chin up about the job search. A while back I was in a similar situation but a very different field. My company moved me to Australia to support a contract there and then when it was renewed, wanted me to train my replacement who had zero experience with our systems and was new to the field. Needless to say that did not work out for them or me. When I got back to the states (after almost 2 years of being overseas), the job market, especially in my field of expertise, was crap. I expanded my job search, and had to laugh at what offers were being given to me. It is like that meme you were talking about. They want subject experts, with professional certifications and education, as well as years of experience, but pay less than half of what they should be paying. It is truly remarkable how they figure out what compensation should be.
I said all of that to hopefully show that you are not alone and the world is not against you. Sometimes it can feel that way, but you can and will get through this process. There are going to be some great opportunities for you, but you will have to go find them. I wish you the best of luck and please let me know if there is anything we can do for you Ice.