Simple laws of physics will dictate whether or not a gun has a suitable level of power to reliably target large WSB or YT. Two guns with the same length and same (number + size + quality) of bands are going to have extremely similar energy in the spear when released, with small differences due to mass of the gun and/or spear.
Of course there are other factors, like the quality of the trigger, the quietness of the gun, the hydrodynamic drag of the gun while swimming, pointing, and aiming, etc.
Allow me to hypothesize my dream experiment... Lets say you were in a laboratory with a super giant kelp forest aquarium, with average 15ft vis, and with a constant density of WSB swimming around. And lets say that the 57 inch Wong Hybrid is the "100% performance potential" for WSB hunting. With that gun an "average capable spearfisher" is able to stalk down and shoot 100 fish a month. How many do you think this "average capable spearfisher" could land with a Mako 120? How many with Riffe Euro 120? How many with <insert brand here>?
I actually would like to get some peoples opinions/guesses on this recockulous hypothetical laboratory experiment. Personally, If the Wong took 100 wsb, I'd guess that the Riffe will take 98, maybe due to slightly slower tracking, and the Mako will get 95, maybe due to making a little more noise with its aluminum barrel. Hence i'd guess that the Mako has 95% of the white sea bass hunting performance of the Wong, but for 30% the cost.
And yes I'm well aware that these numbers are all horse feces, but I would like to get estimates from other people about how much better they really think the Wong is than the Mako or whatnot, IN TERMS OF ABILITY TO RELIABLY KILL FISH.
Edit: Sorry I didn't mean to derail your thread, maybe i will post the crazy hypthetical scenario elsewhere. If you have plenty of $$$ and dream of wongs, go for it. They seem to be great guns. If you wanna hunt on a budget, i'm pretty sure that you could kill very nearly as many fish with a mako 120, or used riffe 120.