>>R’ Belsky is a posek for the kashrus division of the OU. Do you think for one second that if he held it was a problem he’d allow a hechsher to be put on cholov stam items?<<
>>What R’ Belsky holds for himself is not necessarily what the halachah is. As I said, if he gives a hechsher, it’s kosher<<
I believe the OUs policy vis-a-vis Chalav Stam was applied long before R’ Belsky joined the organization. Personally I feel whether or not he would eat it would be a better barometer. (Additionally, you could ask R’ Belsky for a psak for yourself, unless of course you are not planning on following what he says should his reply not be to your liking)