Well the X-ray is most interesting.
IF what were the MCB fixing screws have now been re-purposed, turned around, and are now screwed into new threaded holes in the reflector, then I think I probably like it better than before. Though the screws could be a lot longer, with better thread engagement, the X-ray shows plenty more depth in the new holes in the reflector.
And, IF the assumptions are correct (insufficient resolution to see any threads) the central fixing screw is pretty much redundant
However this needs verifying with a teardown
Personally I have always considered that the central fixing screw is misconceived. Instead of just clamping the MCPCB against the reflector (and dishing it in the middle when over-tightened) it could have been arranged so that the head of the screw butted on the rear side of the shelf (with LED wires led through their own hole, or a “bridging piece” used to achieve the same effect).
The most important area for the MCPCB to be clamped against the shelf is directly beneath the LEDs. A properly configured central fixing screw butted against the rear of the shelf would achieve just this, force being applied from the screw to the reflector, through the emitter spacer rings, directly to where it is needed.
To be frank, no other screws required, except to locate the MCPCB in a symmetrical manner, for cosmetic reasons.
Do Thorfire have anything recognisable as a change control process, or do they just make things up as they go along ?
Edit: for The Miller, please understand this is not a criticism of the BLF design, just my personal observation of how things could be done slightly differently, i.e. “more than one way to skin a cat”.
And it seems as if Thorfire have just come up with yet another one. Nothing could be worse than the one Tom E got, with far to short MCPCB securing screws, and insufficiently (or not at-all) threaded holes in the shelf.