This seems a little rife for abuse. A large character carries a huge whip and attacks at the end of his reach. Misses and the resulting grapple is a success, so a Large character is then pulled 45 ft?
It gets worse than that. A group needs to make a 30 ft climb across a chasm filled with lava. The monk climbs across the chasm, and a character with exotic weapon prof, has everyone grapple him, drinks enlarge person, equips a scorpion whip and attacks the monk. Bam a party crosses a chasm with nothing more than one persons climb, an enlarge person, and a scorpion whip.
Would these two scenarios work?
