Well, the waiter agrees with Russell about what time he arrived back at the table, which was quarter to ten. It took ten minutes for Russell to have his meal back and he had almost finished it when Kate give the alarm. Dianne Webster says in her statement that Kate said 'she's gone Gerry' so Gerry was at the table end of.
Matt said Kate left at 9:50 and they all agreed except Gerry that she wasn't gone very long before returning.
Russell received his meal at that time and had only had a few bites of his steak as Dianne Webster put it when Kate returned to raise the alarm. That discards your 9:55 time before he even got his meal!
"Well I mean Russell, by the time Russell had got back to the table err he’d err they’d err they’d cooked another steak for him, it didn’t take very long and he literally I suppose just had about two bites of it when err Kate came running." https://www.mccannpjfiles.co.uk/PJ/DIANE-WEBSTER-2.htmThe waiter said he kept his meal warm and said nothing about it being recooked!
It was held back for 5 minutes and Russell was served his meal at the same time as Kate left. 9:50pm according to Matt!