Fuji has some real issues with some of their batches... i've had 16 PIF burns... and complete garbage 10+ PIF burns.
Last week I had a batch that had 40+ PIF spikes near the edge of the disc, with unreadable sectors, and oddly enough no speckling.
Luckily BB took it back. :iagree:
edit - oddly enough your 20K PIF batch there has very low jitter. Weird, eh?