Sorry Gary i haven't said it so well, i meant the class of those cameras.
The D7000 is replacing the D90 if i'm correct and the D400 will replace the D300 next year. That means in terms the D7000 can be seen as an entry advance amateur camera The same as the Canon 50D & 60D. It seems that Pentax is aiming to place the K5 slightly above those more in line with the D300s, D400 & 7D.
The D7000 is interesting to compare it with because of the sensor for the rest i would like to see it compared with the D300s & 7D in terms of handling because they are in the same class.

It seems that Hightech have the most problems.
I believe some UV filter actually cut all the light outside the visual spectrum so also IR, maybe that will help.

Isn't the K5 aimed/placed higher than those two, closer to the Nikon D300s and the Canon 7D?

CCD is also sensitives for infrared.
It's that the K10D or the GX10 has a filter in front of the sensor that blocks infrared but it's still sensitive for IR though.
I've read the filter in the K5 stops less IR but i don't see a reason why that would be bad for your sensor and why that would be a reason no to use an ND?

Will if you use a 2 second delay it's only the shutter that cause the camera movement.
It's god to hear the problem "shifted" (most likely) with the K5 1/125 is precisely in the zone many shoot I believe.

Sounds like you need to calibrate the phase AF in the camera, that's the standard AF.
It's not uncommon it isn't spot on and the K5 has the option to calibrate that for each lens.
If you notice all lenses are out of focus you can do a global adjustment with the MODSET hack so you can get in the debug menu... the only problem is that it isn't know how to do that just yet with the k5.

Contrast AF doesn't look at the lens AF or anything fancy, it just try to create as large of a contrast possible between the pixels.
Phase AF is a bit more complicated and it can even see if it needs to focus forward or backwards and by how much, contrast AF can't do that.

Same here

Hopefully i can meet someone nice next week when i go to a crowded room alone.

Have you ever been alone in a crowded room?

I only whisted they didn't make it into a DAL lens, quick-shift is so handy and so is a hood.
Luckily there is the DA35 ltd and the DA40 ltd so it isn't that much of a lost because you've a choice but I hope Pentax would put in those features in other DA primes they might make.
But in the latest interview they said they will use in lens focus a lot so that would be great.

I'm still waiting for a 135mm equivalent so a DA85 or DA90mm f/1.8 would be nice or f/1.4.
I know the FA 77 is very close to that but it doesn't have quick-shift

The stofen might soften things up because it enlarge the flash source but it's only marginal the enlargement so only up close you will see a difference.
something like this link or this would make a bigger difference and they are more efficient with the light link
These somewhat aim the light but an omni-bounce was make to throw the light in all direction and let that light bounce from another surfaces to soften the light, if you don't have the surfaces for the light to bounce off from you've a lot off spill.
Also other brands make those products but you can make the bounce with some paper, here is a cheat sheet from Nikon link

the stofen at least eats one full stop off light if not more so ISO1600 would have been easily feasible then and maybe ISO800 if you pushed it.

Congratulations