SAM, MNK, THF, BRD, WHM 300 currency sitting only on trents, and 65 touches is my current best in Valkurm.
You do not need procs for the mobs to drop these, so stop thinking you need to, pick an easy mob and just go old school merit party style on their ***, you'll get a decent amount of currency during the occasional WS proc time, and a bunch of a bunch of touches.
This was on the DC Trents near the Yagudos on the far west side of the beach where the HQ TE can pop, I'm sure in cities you could get more forgotten items, but less currency due to mobs not changing in weak time and have static weaknesses to their jobs.
Happy Hunting, hope this was enough decent info about how to farm these in mass amounts in a single session.
Hand relic trial:
relic= 50pieces to upgrade to +2
relic+1= 30pieces to upgrade to+2
Relic+relic-1+currency+material+1week till tally for =+1 relic piece. make your choice.
Considering how often we got these to drop its fair to say owners of +1 got boned. +1 is now a pointless upgrade stage and makes no sense allowing direct upgrade to +2.