Hi Kyle,
Can you explain what you mean by slow to reset after shifting and being sluggish. Although I've just recently replaced the entire clutch assembly on my Z but I'm still pretty new to driving a stick. If you are having trouble shifting into gear, try unhooking the clutch slave cylinder's return spring on the tranny. If you can shift pretty well with the spring unhooked, then you're simply losing engagement due the enlarged pin hole, where the clutch master cylinder and clutch pedal hook together. You'll have to take the pedal to a shop to have it weld up the hole and redrill to 8mm or 5/16" depending on which size of clevis pin you can find.
If that's not the case, bleed the clutch system if you haven't done so. If that doesn't work, guess you'll have to replace the clutch/pressure plate. It took me 4 weekends to complete the clutch repair myself as I had never done it before, bleeding the clutch and brake systems, and replaced brake pads/shoes. I used four jack stands and a floor jack with tranny adapter. You can buy the entire clutch kit for about $100 from Kragen, AutoZone, or Pepboys (typically on special order). I'm afraid I won't have time to help you replace the clutch. Nevertheless, I'll try to answer any questions you may have. A service manual is a must if you want to do it yourself. Factory and Clymer ones are the best.
Regards,
Wilbur