I'm L65, and farming at Devil Yetis with a 9-gap, currently. One Evil Cut + Heaven Chain takes care of a Yeti, and they come in great numbers. At my server, atleast, Yetis are extremely secluded - I can often grind for an entire day and only come across another person. Atleast the part where I'm grinding.
I get 147 SXP per kill, and that doubled with a gST, and a GT, I get about one SP a kill, which is decent. Nowhere close to the SP you get at farming at the Stronghold, but ah - we're Bladers. Not meant to do anything fast. Just to look sexy doing it slow.
As far as PEGs and the Caves go, I don't go there, because of the DW pots, and the insane amount of botters there are in the Caves. As a Blader, I get KS'd too much by those who don't turn their "Don't KS function" on, especially by the Nukers. Yetis is nice and secluded for me, not to mention that I make an amazing amount of money on drops, elixirs, and they do 18-25 damage to me. Every time I go back to repot, I get 50 large HP pots, and 800 large MP pots, which lasts me until my weapon's durability runs out.
I'm using a +7 Blade, BTW.