Brock at T-mag is very biased about mexican gear... He hates it (for good reasons though), so you have to take that into consideration when reading info on that site.
His points about mexican gear are valad though. Almost all mexican gear is underdosed, and contains more bacteria than you might want to know about. So you are never 100% sure what you are getting.
I personally have seen lab reports that show different mexican gear being dosed at only 70% of what it is labled as. The quality of the gear changes from batch to batch.
with human grade gear, like organon, will be much more consistant and is dosed more accurate.
Sure vet gear is cheaper, but always take into consideration that your T-200 might only actually contain 150mg of test in it and might get you sick from the bacteria... Is it worth it? Thats up to you.