By far the biggest nerf is Saiyan's ability to come back stronger.
Vegeta lowers his defense and takes a puny blast from Krillan and
comes back within seconds after being healed from Pickle Boy then
he's flowing with much more power.
Take Picke Boy ---> put Pickle Boy in time chamber with Goku & Gohancock;
Let them blast each other & repeat a year worth of improving that already
had amazing outcomes in just seconds.
Wallamagix.
Vegeta lowers his defense and takes a puny blast from Krillan and
comes back within seconds after being healed from Pickle Boy then
he's flowing with much more power.
Take Picke Boy ---> put Pickle Boy in time chamber with Goku & Gohancock;
Let them blast each other & repeat a year worth of improving that already
had amazing outcomes in just seconds.
Wallamagix.