I might go cleave on my paladin tonight to get a feel for how respectable the exp rate is, try and benchmark how long it would take to make a pulse weapon via that means.
Difficult to cleave on Asura though, most of the good spots are botted to ***.
I did a bit of random PLD cleave the other day. Checked my logs for some info.
Code
[20:26:19]=== Area: Sih Gates ===
[20:30:30]Martel gain potpourri for a total of 173!
[21:07:31]Martel gain potpourri for a total of 429!
A very relaxed 41 minutes there. Went from 173 potpourri to 429. So 256 in 41 minutes. And I certainly could have been going faster. Could also improve by having a cor doing cor roll.
Going at this rate it'd take 66 hours to get 25k. But I'm confident you could go much faster than I was.
Although I'm not sure I would recommend this particular camp. It's commonly used as a place to kill dullahan for ambuscade. Just happened to be empty when I went.
I really wish Reisen didn't suck horribly for PLD cleave. What with the mobs walking right through the treeline. Hard to line them up.