[spaghetti]

It's always hard to choose if you can't test them in water: italian magazines publish articles about single items, but they're generally indulgent and make no technical comparisons between different products. So you learn how guns are made, but you never get an idea of which one is better for your purpose.
I've been told that american spearfishing magazines DO publish comparison-test articles. Isn't there anything like that published recently about those 4 guns?