When I was having my driving lessons I drove a manual car. It was some sort of 4 cy Mazda, pretty new.
Anyhow, I remember that after an hour of driving, my leg would get very tired from pushing the clutch in. I don't have this problem with my EA.
I have driven cars with a much lighter clutch then the EA, but
there are a large amount of cars with a heavier clutch.
Then again, who cares how heavy the clutch is when you take off sideways
If you adjust the clutch pedal too tightly, the cable will become too tight, and act as if you are slightly pressing the clutch, that's why it slips.