Magnuson, a branch of Eaton sells 3rd and 4th generation SC's that have a type of cutoff to reduce SC drag under part throttle conditions. Some other SC site said they had a cutout for IDLE AND part throttle conditions. I agree turbo's are better if your goal is max HP, but if done right an SC appears to be able to give a nice little bump in HP with what appears to be less complication of install. I like turbo's, but not all the plumbing needed. Also, I'm not trying to make my car into a dragstrip terror or street racer. I just want to get some extra ponies without using nitrous or doing surgery on the engine. I've looked at all the possibilities for parts upgrades and for the money and simplicity (if my blossoming design works out), the SC fits my needs best. If JWT had the 2000 Sentra turbo kit ready I might be less willing to put together an SC, but it's a moot point.
BTW, what this "Hydrocharger" that was mentioned?