I didn't know you posted this, or I would have saved that response for your thread. lol
Yes, gains should be more.
This assumes that the diet will support the gains (if you don't eat, you can't grow), training will stimulate the body, and proper rest will allow the body to grow.
The down side of this is, 4 times the gear does not equate to 4 times the grow. It comes much closer to equating to 4 times the sides though. For many, an increase in gear to a mega dose (1-2g) represents a very marked increase in sides. Often, the increase in gains is not enough to outweigh the increase in sides.
All of this assumes that we are talking about a person who has any business doing this anyway.
If you are 18yo, 6'2" and weigh 150lbs...14 grams of gear won't do it. You gotta eat.
The increase in gear and gains is really only seen in someone who actually should be using gear in that range anyway. You also have to be aware that some folks seem to plateau. If you hit the wall using 2g of test, what's next...3g? then what?
Use enough to grow without shorting yourself, but not so much that you are pissing oil and money.