Are the jino's better than the kexing as far as results, given that you do not have a reaction to the 192aa GH, probabaly not. Most people say they cannot tell a difference between the kexing and the jino's.
Kexing has admitted to their GH being 192aa, but also stand strongly behind their purification methods, saying their GH is 99.9% pure. However, some people have reported red welts from the fitropin GH. A welt is fine, but a red welt basically means a localized immune response to the GH.
Ultimately the decision is up to you, If you think the small amount of money saved is worth getting the fitropin, then by all means do so. I've found that if you spend some time looking you can find jino's almost the same price as the kexing. Because of this I feel it's really not worth my time to go through the speculation especially when something tried and true is right there for almost the same price.
Hope this helps.