You think GSP only walks around at 185? LMFAO dude
No way in hell GSP could make lightweight unless he made it his career choice and decided to never do WW again.
If Rumble can make 170 from 220, GSP could make LW. From what I understand, he only drops about 15 or 20 to make weight. That's one reason he's not comfortable going up to 185. I think he could do LW, it's just a matter of planning. I'd rather see that then Penn plumping up again.