Although you have stated you have had this problem for a few seasons, the timing of this post leads to think (perhaps incorrectly) that you have recently had a pre-season net and felt a bit uncomfortable with the ball pinging past your nose. If I were you, I would take a step back (if you pardon the pun) and maybe analyse the situation for what it is.
If your nets are anything like the ones I practice at then the bounce is far greater then what you get outdoors. Those bouncers which your clubmates so kindly bowl at you would be long hops outdoors that you could comfortably cart around the park. Why do they bowl bouncers? Reason A is because they can pretend to be Mitchell Johnson for 60 minutes, Reason B is that they can see you are uncomfortable with the short ball and Reason C is because anything on a good length indoors will get despatched anyway as it so much easier to play through the line on a quick and even surface.
If I am right about the nets, my response would be next net into bat wearing adequate protection (helmet, arm guard and chest pad) and attack the buggers from ball one. Yes you might wear one or two early doors but the sound of you middling 2-3 pull or hooks is quite disheartening to overweight medium pacers and they'll soon bowl fuller.