Low density is for a bigger bat in a lighter weight which produces a placebo effect.
@Seniorplayer has it nailed on its head.
I know what over drying a cleft does and doesn't do.
A low density cleft just gives you a bigger bat at lower weight.
Over dried gives it a soft pressed feel which some swear by.
There a reason why a lot of Asian bats go well from the start but die quicker.
People think soft pressed but the same feel and look also include over dried/naturally dried due to local climate.
Most lower density from custom makers is swalloped up by pro on the cadge paying usual RRP.
@hell4leather cricket they get and cut there own trees be a good question for them to answer on what they get in low density