You would normally bank a Rookie 61 score in a standard round, however with Best 18, there could be scope to take some risk.
It would depend on whether that 61 score is likely to be Best 18 or not. If YES then you're probably not going to gain too much unless Cameron has another break out game, more likely to be on par or slightly under. If you're confident that the 61 won't end up as your Best 18, then it's basically a 'free hit' at Cameron, in that scenario, I would give Cameron a go.
Is the 61 in (or likely in) your best 18?
If it's already out or maybe the 17th or 18th score with players to come I'd roll the dice, you can't really lose then.