thats a good thing, be glad you have nice short gearing. They took it away from the wrx and I miss it. I like the economy of the wrx 5th gear but I wish I had gears 1-4 that my RS had.
imprezas have clutch shudder. all of em. at some time or another, it happens. it should go away when the clutch has warmed up but if it doesnt then you are reaching the end of your clutch's service life. that is to say, you could keep using the clutch for a while but it will shudder. exedy makes the best clutch. its expensive. you can get an sti clutch for less, I think, if you have an enterprising local dealer. its made by exedy, actually, but it's cheaper than the exedy brand aftermarket clutch, or so I've heard.