It's probably already been pointed out, but armour does decay, and heavy use cyberware needs constant care. He's going to need to get his gear serviced frequently, and probably attracting the attention that he does, he'll be too hot for many doctors or dealers to even see, not just that but he'll probably be backstabbed with the doctors calling the police on him or implanting secret bugs and devices upon high paying request. Something to consider.
This is something that I wondered a little while ago. How would a GM monitor damage to cyberware, and how much would it cost to repair it? At what point is it damaged to where it doesn't function properly? If one of his contacts is a cyberdoc how does that affect how much he has to pay?
Be realistic about it.
7P, but all soaked? Okay, once, maybe twice that's fine. Fifth time, max, since he isn't dodging, he's just plain shrugging the damage off as negligible. Which probably means it goes 'ping' against his 'Ware.
At some point, step back and recount every shot that connected but didn't damage him, every one that did damage him, and every other thing, be it static interference, or just water in his Cyber, that would rationally impair a poorly maintained high-tech setup. Technology breaks down. Guns break things. Nothing can stand up to an HMG forever.
Even just gouging his wallet will remind him that there is a cost to badassery - but, you know by now he's learned his lesson. If he tries to blow more cash on Ware, to make himself even harder to kill, it's time to break out the juice.
Yeah.
Juice in the 'Ware is gonna be a bitch. Alcohol is worse, and if his Doc is a drunk, and then he runs up against some loco with a flamethrower...The look on the player's face would bust your gut, I bet.