People will advise all sorts of different things when it comes to clutches so possibly even consider trying something different if you dont want to go down the path of Exedy anymore. Some people love them, others loathe them for all sorts of reasons justified or unjustified. Just that when you find a good thing stick with it. Are you happy with your old clutch as if you only want a little bit more clamp you can get your pressure plate modified to suit - easy
Jim Berry is a custom clutch specialist in Australia that does them for all sorts of racing applications and is great at what he does. From his own admission his 4G63 3000lbs+ clamp single disc clutches are pretty hard on the left thigh and are not recommended for the mainly daily driven street car. Last we spoke he quoted me $1000 + postage + I had to supply an existing Exedy heavy duty clutch for him to modify so I looked for other alternatives. He's the best in the industry but if you cant afford to spend that sort of money at the moment it may be worth giving something else a try, especially from the American DSM scene
I am not going to get into a 'buy this/buy that' scenario, just offering you some different options that you probably didnt know about that might be a bit more value for money at the moment for you.
There is a clutch company in America called 'SPEC'
http://www.specclutch.com/ and they make a 4G63 clutch called the SPEC Stage 3+ with part number #SM483F - It's got High clamp pressure plate,
full-faced (non puk) carbon metallic friction, high torque sprung hub and disc assembly, 3000+lbs clamping, 500ft-lbs torque. I bought one of these a year ago after reading some good feedback from several street/strip car drivers in US forums. I still havent had a chance to try it as my car is still off the road so I cant say how it performs at this stage unfortunately. It's getting good reviews especially from those involved in motor racing or with some decent power under the bonnet. Have a read of some recent feedback at the bottom of this page:
http://www.dsmtuners.com/forums/showthread.php?t=166657&page=6&highlight=stage3
One step down from the Stage3+ but not as good is the SPEC Stage3, 6 puk sprung clutch with 415 Ft-Lbs Torque. It's part number is #SM483 and is also getting good feedback from some hi-po daily drivers however it all depends on how much grunt you've got and how hot you get it whether or not you'll experience slippage.
The ACT2600 or bigger in a full face clutch disc (not the Extreme 4 puk version) has been a popular choice for years but its said that the ACT's have had some problems failing (manufacturing faults) over the last couple of years. Some people are still die hard ACT fans, others have since moved on.
There's also the Centreforce Dual Friction clutches but I've read mixed reviews and perhaps may be worth looking into a bit further.
Just some food for thought for ya, have a look around, weigh up your options, and be confident in your next decision