Practice on empty straight streets and you will get the hang of it. When I started learning to rev match my car was jerking like no other.
Just blip the throttle and let go of the clutch.

 

IMO, it is harder to blip the throttle on downshifts when RPM's are low compared to on the track. It just takes some practice to get used to. Watch some videos on YouTube on Heel n Toe.

 

rev match that shit like a bauce

 

Great thread...this goes to the heart of why we love these cars -- the reward of driving them! I've been using double-clutch/heel-and-toe/rev matching every single time I drive for about 30 years. I agree with the posts here that say that double clutching isn't really necessary on a good road car trans like these, but I've had lots of Alfas (which REQUIRE it) so I'm in the habit.

To the point, it's just not possible to drive these cars without rev matching without constantly upsetting the balance, stressing the rear end, and generally pissing off your passenger. Ever ride with someone who downshifts for a corner then lets the clutch out without blipping? Drives me crazy all that lurching forward. I've seen posts from others saying that it's not necessary on the street...I don't agree, unless you view driving your S2 as a chore to get you someplace. Drive it like you mean it. That's just my view.

The only way to get good at it is practice, practice, practice. The formulas that people have provided are good, but you're not going to be watching your tach (hopefully) so the only way to know in the end is with your ears. In your example, going from a lazy gear to second, that sounds like a huge jump and I don't remember going down that far at once -- big difference between performance driving and abusing the equipment. But in situations similar to that you have to be comfortable with blipping HARD and hitting the match real close. Otherwise, there's a lot of driveline shock. That piles up over time and it's really not that impressive.

Someone said that one wouldn't want to match revs all the time, as it is hard on the clutch. To the contrary, using the clutch disk to pull the engine revs to match the rear wheels by letting the clutch out while the engine is at low rpm is one way to abuse it...the technique of rev matching and heel and toeing is the most mechanically sympathetic way you can drive your manual transmission car. Unless it's a Rambler American, then who cares?

And while you're learning this, know that the next level is even more fun -- heel and toe. That's the ony way to manage braking for a corner (even in a 30 mph speed limit in town), changing down to second, and matching the revs so the whole process is smooth and...cool.

Sorry about the novel...but learning these techniques and using them all the time will add greatly to your driving enjoyment, will translate perfectly to the racetrack, and take good care of that sweet car of yours.