I hate to say it, but if you are not getting nice sp per hour in a party "you are doing it wrong".
Several questions, how many were in the party, what was rank range (was the 5 rank bonus in effect), what crabs Giant or Island. If Island crabs were they the ones in Cassiopeia Hollow.
At 20, you can form a 20-25 party and kill yarzon in Mistbeard cove. You will probably want 2 maybe 3 healers and 5 or 6 DD. You can easily get 500 SP from pretty much every mob, certainly 10-12K SP an hour is possible
At 22-27 you can take eft, same location. Eft are so good that 22-33 parties work, and here the 5 rank bonus is not as important.
Hope this helps
Forgot to add. Please use the party search and recruit system it is starting to work nicely. You can set a party to recruit between a set rank range and people can join from any continent without an invite. Also, standing at the aetheryte in Mistbeard cove will help as most are hanging out there *certainly on melmond this is the case)
If you really do want to solo, at 20 I found Coerthas to be very good, mobs nr camp glory puk and squirrel. The Mun Ty Cellars are also good sp solo
Edited, Nov 3rd 2010 7:59am by MisterGaribaldi