I'm having trouble with the stockyards in Abe's Oddysee PC (OMFG I JUST GOT IT OMGOMGOMG). There's this little bit where you have to jump/run through a gap, and there's a Scrab on the ground waiting for his lunch.

I run and jump from the ledge, land on the ground with the Scrab, and... get eaten. Several times. I try to hoist up onto the other ledge, but I run into the wall and fall down. Thus letting the Scrab overpower me.
Is there some secret jig you have to do or something, or is there just a knack to hoisting up to the ledge in time?
P.S. No I DON'T want to use the 'I_am_your_father' thing. Doing it properly is just so much more fulfilling.
P.P.S Scratch that. I'm now at the bit with the two Sligs, and you have to hide in the shadows. I keep geting killed by the second Slig. :\