Vegetas increases were minimal in the official Manga. Gohan swinging a sword around would therefore result in minimal gains in the official Manga.
From an official Manga debate, you lose this one.
Beerus was alternating his battle power in Battle of Gods, if he used the same power, he would of killed everybody weaker then Ultimate Gohan. Therefore your feats of Vegeta fending off Beerus mean jack shit. Therefore proving that gravity training didn't result in him getting stronger in BoG, he was preventing himself from getting rusty.
From a Battle of Gods debate, you lose.
From an official Manga only argument:
kriss- said:
After hard training everyday, for 7 years straight, his increases were minimal., This works in line with Toriyama's statement that there are limits to muscle strength. So we're back to my original argument: Gohan only swung a heavy sword around for a day, and achieved no new transformations or Ki control.
^ This point still stands.