From my experience they don't even bother checking. On the one occasion a friendly staff member actually checked stock for me but every other time I've just got the "No, check online at 6am".Don’t recall seeing anyone being successful with walk in stock since launch day
The same thing almost happened at JL last night. The first staff member said "Oh maybe, I'll check" and then another member chimed in and straight said "No, none", and then they actually did have some when they checked so I'd say half the time the staff aren't even aware if stock is in or not.