I have a non modular psu. I was thinking to beautify my pc. Hence use sleeve cables and since i have a source 340 cabinet i can tuck away extra length behind the shroud of psu. But is usng extension cables safe? I mean had it been a modular psu i could have directly used new cables but since i have non modular so i have to connect it to wired making length double and a joint in between, would it interfere with power delivery?? Is it safe?