After playing with my SouthOrd MPXS-14 set for a few months, I feel like it's time for an upgrade. Nothing wrong with the SouthOrd set, but I'd just like to see what else is out there, grow my toolselt, and see what other picks feel like. HPC seems like the next step. As I add more and more picks to my set I don't want to be filling up with what seem to be regarded as lower-quality picks -- I know quality is subjective, but the price isn't much of an issue to me and I certainly haven't read anything negative about HPC whereas I have about SouthOrd.
From my searching, it looks like lockpickers.com, lockpicks.com, and possibly locksmithtoolandsupply.com & lock-depot.com (these two I'm not sure of) will ship HPC to hobbyists. Lock-depot's store policy says "Anyone purchasing locksmith tools must be a locksmith, a locksmith in training, or an individual who lives where it is legal to have appropriate tools" -- seems simple enough, but when you actually add tools to your cart, they ask for your job title. Kind of contradictory.
So, I guess, first off -- can anyone vouch for these companies, and does anyone know of any others that will sell to hobbyists?
And second off -- I know this will be a hard question to answer because it is fairly subjective in nature, but which HPC pick sets do you think I'd do well to buy?
It seems like people on this board are in favor of the "2000" series of HPC picks -- is the PIP-2000 set made up of all of the 2000 picks? Is it worth it? Why have I read in some places that they are mostly European locks? Living in the US and having access only to US hardware stores to buy locks, a Euro set wouldn't make much sense for me.
How do the computer-generated picks compare?
It looks like a lot of the HPC sets come with picks that don't have stainless steel handles -- would that present a problem?
Stainless steel vs. spring steel? I'm confused on that one, too.
The NDPK-16 and NDPK-32 both look nice, but I worry that those might be the lower-end of HPC picks, when what I'm looking for is something nice.
Lots of questions, but I know you all can help

Thanks in advance!