^It's not a mater of big or small, but rather which type of SlingShot it is. Many small ones are bungee launched instead of the common spring launch that's found on bigger ones. However, there are a few bungee launched big ones as well, like the one at Zero Gravity in Dallas, Texas.
So if, you think that the smaller one(s) you rode were mental, wait until you try a big bungee one. They're almost too intense. The kid & I had an unlimited ride wristband & after trying everything (SCAD Tower, Bungee Jump, SlingShot, SkyCoaster & the SkyScraper Booster) once, we re-rode everything except the SlingShot because it was too much to ride again so soon after the previous go about 45 minutes earlier. However we returned at night to do them all again. :wink:
I prefer the floater airtime of the huge spring loaded SlingShots over the ejector bungee loaded ones, but you get used to spring loaded ones very quickly & the thrill of riding them disappears. Even though the thrill is gone, I still like the sensation & the views they offer. Of course this goes completely against my preference in coasters, where ejector airtime always wins out over floater airtime. :?