I'd ask for the original first, Farah, because we once spent longer documenting a substitute than it would have taken to get the agreed component sent

Was the original actually available, Oliver? A preference doesn't establish that option can be supplied.

In our case yes, though we only found that out after asking directly; I'm not claiming Mei's seller has one on the shelf

I'd prefer the confirmed arrangement, but would consider a reviewed alternative. No stock answer for the original yet, and the substitute has only been called equivalent

What visibly differs on the adapter, Mei, beyond its reference?

For any alternative assessment I'd retain the original samples and task conditions, including placement and release. A different adapter may alter more than the connection at the wrist.

Anil, the offset and locating shoulder look different. Farah, we still have the identified trial housings and agreed receiving nest, so I won't accept a substitute demonstration using easier samples

Could a drawing comparison identify the differences before anyone arranges another trial?

Yes, Zara, and I'd ask who pays for any additional work before Mei's team becomes the free development department for a change they didn't request

A drawing comparison can screen the proposal, but it does not replace the agreed sample handling evidence. I would keep both requirements explicit rather than choose paperwork or trial as though only one matters.

Any response on supplying the confirmed adapter, Mei? That question seems to be getting lost.

Still no availability answer for the confirmed adapter. They sent a substitute drawing, now with our toolmaker. No handling trial agreed and no installation release; both routes remain open

I'd keep chasing that availability answer separately, then; sending the substitute drawing isn't a reason to stop asking whether they can supply what they confirmed