"My friend Clive we have telepathy"
Thanks Gordon, I needed a boost. I've talked about doing this for a while and just had to do it.
Bluebear said. "I gather the mirror is meant to be more delicate in an SLT, and that care needs to be taken in cleaning it. Did you find that?" Ah, I never cleaned the mirror (other than a few gentle blasts from the digi-blower), but was thinking it maybe had to be done with the swab. I tried to clean the sensor with a blower and it never got the bad pieces, so I was thinking the mirror was the source. It seems not. I have cleaned the mirror with a blower and watch a video about it. It seems stronger that we are led to believe..it actually temporarily bends when the air blast hits it.
Anyway, you just manually flip up the mirror (there is a latch) and the sensor is exposed.
So after three DSLRs, I did this deed. Seems painless. I was not happy about having to touch the sensor. Guess I should do he A700 now.