18g isn't cannons. 16's are. those are fucking huge and will make holes in your skin nearly. after so many years of pinning 18g the results seem to stop but always have stayed, but start slowly dimishing if you stop using them and if don't start using "cannons" as you like to call them again 3 months later. i tried taking it up a notch at the 16's but they are THE BIGGEST size increase from ONLY going down 2g's. this is rock solid muscle tissue, harder than you can imagine, scar tissue but not synthol, pmma, style shit i mean NO soft muscles i mean rock hard ass muscle lying under the skin due to poking with them constantly. i don't use them just for the purpose on their own, pin with 23 and 18 depending on how i feel and where im hitting, not injecting myself due to the sake of scar tissue. heres a pic