The Rules FAQ says:
Q: Can a character with Stretching reach out, grab something, and then pull himself to it? For example, a character has Stretching 10” — can he reach up and grab the top of a 10” tall building and pull himself up to the roof?
A: Yes, he could do that, assuming he has sufficient STR. This action typically requires a Full Phase. It only requires a Half Phase if the total of (inches Stretched + inches the character pulls himself) are less than or equal to half his Stretching.
So, if the character made a "half Stretch," he could pull himself up to, say, a rooftop and then make a Half Move with some other form of movement. But I doubt a "half Stretch" would provide the "elevation" you're talking about in most cases. In short, it sounds to me like you made a fair and proper ruling.
Steve Long
Young Curmudgeon
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