The blood evidence in the two cases: SJ and JB are two completely different propositions. In the SJ case its about blood being exhaled into the open atmosphere producing particles so fine they were not visible to the naked eye. In JB's case its about blood entering a small aperture into a silencer from a contact gunshot wound which resulted in a blood flake measuring 1/2". The blood in JB's case was not fine dust invisible to the naked eye as you describe.
There is absolutely no evidence whatsoever that TFG shot June. This is off the richter scale madness.
The TFG didn't fire any shots. 29 cartridges were found on the work surface. 1 cartdrige was found in the box on the work surface. Casing DH/43 was found underneath the wardrobe on 9th Aug. No bullets were swapped. The silencer was found by the relatives on 10th Aug along with all the other firearms and associated equipment eg ammunition, scope/sights.
If you want to rewrite history you need all the parts to come together into a seamless narrative and I'm afriad they do not even resemble a poorly stiched patchwork! I am sorry I do not wish to sound rude but your posts are all over the place and only seem to make sense to you.
Now Douglas Hurd is part of the conspiracy 
Can you explain what happened to round 30. It did not arrive with the other 29 sent to MF. Nit picking again with the finding of DRH43. So I will return the compliment. round 30 was in a tray not a box. I concede it might have been the 9th, I was working from memory. This indicates a sloppy SOCO operation if they had not found the appropriate number of cases at the first time of asking.
Explain the different weight ratio for PV20 or do you believe it is one of the many examples of human error in this case.
Prove the TFG didn't fire any shots.
Explain why RC did not find the flake when he dismantled the SM on the 21st August. If it was loose as described it would have fallen out. At 1/2 an inch how could he have missed it. Show your evidence for its size I believe (from memory) it was about half that size, I will check it out later.
I do not say it was dust for all cases. It would possibly only have been dust if the blood had dried. If it was wet the same basic principles apply. Air/gasses forcing wet blood into the SM. Remember in the SJ case the amount required would be about as much as you would get if you pricked your finger.
Why was there no bone or tissue in the supposed back spatter as is most usual with this phenomenon.
I did not say it was necessarily the dust that caused the contamination and JB's blood expert said it was invisible to the naked eye on any of the baffles or on the inside of the SM.
You say you cannot take me seriously so I will ask you again to explain the riddle of the blue socks. I asked you months ago and you said you were working on it or it was too tricky. Maybe I would be more inclined to listen to what you have to say if you could answer this very important question, not misquote what I say and produce documentation for your assertions where appropriate.