You know what's scary? When you ask for something like that and the guy you are asking agrees in such a way that makes you scared that you didn't ask for enough.
Which brings up another question.
What is the purpose of weight? Is is really to make a "fair" game where both players have an equal shot at winning or is to attempt to make an unfair game where one or both players think that they are stealing?
I think it's both. Sometimes it's an attempt to make a fair game but mostly it's players trying to get over on each other and steal.
I have long held the opinion that if someone offers you weight, you need more than they offer if you want to have a chance of keeping your money.