ok so i just ordered a 12ch insert snake (12 trs -> 24 ts) off ebay and it showed up. great start right? well it's labeled poorly! i can get corresponding channels because all ends are color coded. BUT there's no differentiation between the TS ends. so how to i fix this? will trial and error work? what happens if i plug the ends in the wrong spots? like if i want to use a compressor as an insert .. but i plug the SEND ts side into the output of the compressor and the RECEIVE into the input? ya know? is there any harm that this could cause or will it just .. 'not work'. if it doesnt work, i can switch of course (trial and error). but i dont wanna mess up any of my gear. thanks!