How to gain 140m exp in 4 hours

Hits to kill and exp isn't exactly an inverse relationship. Bishops don't train 2x faster by 1hkoing Skeles vs. 2hkoing. There's always the availability of spawn to deal with.

I don't like using the Pendant of the Spirit because even if it does increase the total exp you gain, being able to kill a monster in x hits can make training much smoother. Oblivion Monk Trainees are unable to shoot me if I kill them in 3 hits. If my damage was reduced enough to where I couldn't 100% 3hko, I would feel a lot clumsier, take more damage, and probably have to move back to Oblivion Monks, which results in worse exp. Plus hitting those bigger numbers just feels better.

It pretty much is for me, considering I almost constantly have a mob to fight based on how I rotate around. Oh, and I spent 1300 ginsengs or so in those 4 hours, so roughly 400 an hour (a little more than I originally thought I used, but I was also hard-core grinding, not dodging damage).