[squid-users] Squid Sibling Proxy-Only Still Caching Locally

I am configuring squid caches to be siblings of each other and have gotten them to correctly communicate with each other from an ICP perspective and have one of the caches (B) pull content from another cache (A) that already had the object cached, but it seems when it pulls this object that it ends up caching it locally. When a subsequent request is made to cache B, it is found right away, logs a TCP_HIT and returns the object. I would have expected that request to make an ICP request to A again and then retrieve it from it but instead it was in its cache. I believe I verified this as well by looking on disk and there is then an object which did not exist prior. I thought by making the sibling proxy-only that would force to never cache from anything it received from a sibling, but it doesn't appear to be the case.
Thanks
Darren

Cache A Config (without logging configurations)
acl all src all
acl manager proto cache_object

debug_options ALL,1 33,2
cache_mem 4096 MB
http_port 10.208.129.40:8060 accel defaultsite=mysite.com vport=80
cache_peer parent.com parent 7779 0 no-query originserver name=myAccel
icp_port 3200
icp_access allow all
cache_peer myhost sibling 8061 3201 name=myhost8061 proxy-only
http_access allow all
cache_peer_access myAccel allow all
cache_peer_access myAccel deny all

Cache A Log
[01-18-2012:15:32:01] 1326922321.696 22 10.208.128.43 TCP_MISS/200 48646 GET joe.com/thumb.png - FIRST_UP_PARENT/myAccel image/png "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"
[01-18-2012:15:32:14] 1326922334.204 2 10.208.128.43 TCP_HIT/200 48657 GET joe.com/thumb.png - NONE/- image/png "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"
[01-18-2012:15:32:25] 1326922345.314 - 127.0.0.2 UDP_HIT/000 116 ICP_QUERY joe.com/thumb.png - NONE/- - "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"

Cache B Config (without logging configurations)
acl all src all
acl manager proto cache_object

debug_options ALL,1 33,2
cache_mem 4096 MB
http_port 10.208.129.40:8061 accel defaultsite=mysite.com vport=80
cache_peer trp0001-08.int.westgroup.com parent 7779 0 no-query originserver name=myAccel
icp_port 3201
icp_access allow all
cache_peer myhost sibling 8060 3200 name=myhost8060 proxy-only
http_access allow all
cache_peer_access myAccel allow all
cache_peer_access myAccel deny all

Cache B Log
[01-18-2012:15:32:01] 1326922321.674 - 127.0.0.2 UDP_MISS/000 116 ICP_QUERY joe.com/thumb.png - NONE/- - "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"
[01-18-2012:15:32:25] 1326922345.354 40 10.208.128.43 TCP_MISS/200 48646 GET joe.com/thumb.png - FIRST_UP_PARENT/myAccel image/png "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"
[01-19-2012:15:39:31] 1327009171.018 2 10.208.128.43 TCP_HIT/200 48658 GET joe.com/thumb.png - NONE/- image/png "PRODUCT:-" "BU:-" "SESSION:-" "USER:-" "ROOT:-" "PARENT:-"
Received on Thu Jan 19 2012 - 21:41:36 MST