VEP Pro - Some instances out of sync

[Ralphjams]

Hello Everyone. I recently made the jump and picked up VEP and built a slave PC. I've been trying to configure VEP to play nice with logic but so far it won't sync up correctly. It seems some instances of VEP have more latency on playback and when playing live despite having the same settings. I've got barely any CPU activity on both computers so I'm pretty sure I've set something wrong. I also couldn't seem to find any posts of anyone having this issue .Some seem to have occasional issues with logic not syncing- this is constant.

Master
Macbook Pro i7 Quad 2.0GHZ 16gb Ram, SSD system drive
OSX 10.6.8
Logic 9.1.8

No samples or plugins on master other than convolution reverb

Slave
Quad Core i7 4ghz, 32gb ram, SSD system drive, SSD sample drive
Windows 8.1
East West Play Plugins (all gold, no platinum). Template is using 13gb of Ram

VEP Setup
8 Instances on the slave, Play 4 with 8-16 patches loaded up per instance
Logic has 8 multi timbral event input plugins with 16 channels each and I/O plugins

Buffer settings - tried everything. at least 256 on logic with 1 buffer (two if you count the event input)
Logic has delay compensation on ALL, Process Buffer Range set to medium, Sample accurate automation.

Play setup
Stream from disk
512 voices
medium buffer size

Static IP addresses
Firewall off
Directly connected (no switch)
Wireless off

Thanks a bunch!