The armed forces site has a report from yesterday, mostly similar to the BBC's, but with this that I don't recall seeing before:
'Ms Marsh quoted Mrs Cilliers who earlier had told the court it would take five minutes “if you had nails” to take the slinks out of the parachute – slinks are key components which were found to be missing following Mrs Cilliers jump.
Ms Marsh asked Mr Cilliers: “Do you have nails?”
He replied “no” and showed his hands to the court
Mr Marsh then asked “Do you have all the fingers on your hand?”
“No” he replied, “I’m missing the tip of my right index finger there’s no nail at all.”
The trial continues.'
https://www.forces.net/news/cilliers-trial-army-sergeant-tells-court-he-would-never-harm-wife
It sounds as if Victoria was giving him another possible 'out' - though it seems fairly unconvincing to me, as he could easily have taken something small in to assist him. He denied taking any tools into the toilet.