I have the same small red jack, I use 2 of them, but the aggravation of not being able to slide that jack under the Boxster is real. I find if I raise the car up and down a few inches somewhere else on the car the shocks don't go down all the way and I'm able to slide the jack under lifting points. It's not a bad idea to have 2 jacks around in case you need to lift and reposition.
I have the same small red jack, I use 2 of them, but the aggravation of not being able to slide that jack under the Boxster is real. I find if I raise the car up and down a few inches somewhere else on the car the shocks don't go down all the way and I'm able to slide the jack under lifting points. It's not a bad idea to have 2 jacks around in case you need to lift and reposition.