If you're referring to the stickies that people sometimes attach to their orders, that has little to no bearing at all on the time involved in filling out an order. As has been described on the CMP forums, the person filling out the order might take into consideration the request on the sticky (such as, "USGI wood" or "WW2-dated receiver"), but if there are no rifles immediately available that meet the request, the employee will not spend any time looking for a suitable rifle. They just pick from the next few available rifles, so any more the fulfillment of a stickied request is coincidental.
Was thinking about the current HRA SG orders. Seems since they've been finding a few SAs and so offering customers at the top of the wait list the option of taking the SA or continuing to wait for an HRA, and a few have been able to change their orders from HRAs to SAs and actually get them faster - or so that's what they've posted over there.