To be honest all that crying bout sneakers is forced by weak players with ~5/6 PE who don't even know that they can turn they character around (BTW I'm not a sneaker). It's so sad when I see that bastards sneaking around, tracking their victims and get killed because of bypasses. Ranged sneakers are real problem, but we can find a solution.
My proposition:
1. Leave sneak as it is with clothes and perception penalty.
2. Remove bypasses after desneaking.
3. Make it possible to get into sneak only with full HP, not crippled, blinded or under any negative effects and out of sight range of any enemy creature/player.
4. If you want to use weapon without silent attack you are desneaked as it is now, but you feeling dizzy for 3 seconds, something like your head is spinning, because stealthboy is only a device disrupting your image, and you have penalty for your accuracy. For example if you are 1-10 hexes from your target everything is ok, 10-15 hexes you have -10% chance to hit your target, 15-20 hexes -20% and if you are more than 20 hexes from your target you get -70% chances.
I think it could works. Don't ruin this skill. I know that now almost everyone have sneak, but if ideas I read about on forum here and on other topics will be introduced with incoming updates this skill will be dead. Make it usefull, make it tactical, make it easy to learn and hard to master, but please, don't kill it.