Good to see that Pentax charges a sensible price for the shims... I was scared that they would overprice them just like simple plastic things like lens caps, hotshoe covers and such.

How much did this set cost?

I use a ZAGG Invisible shield on my K20 and it is better then most of the cheap alternatives.

I tried them as well, their coverage is better then most insurance agencies but still when you are on holiday there isn't much covered.
There is so much small print which excludes a lot of cases that it wasn't really worth the effort.

Don't know if I really see any difference, but there was really quite a lot of dirt coming of the contacts. I just took a cotton swab with some alcohol to clean them.

on insurance...
I was looking for insurance mostly for when I am on holiday. As it turns out, everything I do on holiday is not covered by the insurance.
We sleep in a tenttrailer which because it is made of tent cloth has no lockable doors so the equipment is not covered.
I tried to convince the insurance companies that on a campsite my car is probably the most secure place because I can hide the equipment out of sight and the doors are lockable. But no, a car is a definite no-no...
Basically I would have to take all my equipment with me when I go to the toilet or shower...
Same goes for trips outside the vacation period, only if someone rips the bag of your sholder you might get a refund.

This is basically the information I got from the insurance companies here in the Netherlands.

Fourthed! Especially the articulated screen and ISO performance.

Plus:
Wider dynamic range
Huge viewfinder like an old manual SLR
A factory-installed split screen[/quote]Fifthed except K7 body, fully articulated 3" screen a la G1, and IS and dustbusting a la Olympus, visible focus points in the viewfinder, my menu, no increase in pixel count necessary thankyou.[/quote]Sixthed

Just did my own reliability test with the Cactus V4s.
I placed the transmitter right between my two receivers.
I pressed the trigger button on the transmitter 150 times and the receivers triggered every single time.
I then placed the receivers at a distance of 5 meters and repeated the test with 50 triggers (was getting tired of pressing the button) and both receivers triggered every single time.
For the last test I placed the recievers in close proximity of both our DECT phone and my wireless router allthough they use different frequencies there is a lot of electromagentic interference close to them. Again I pressed the button 50 times and the receivers triggered every single time.

So either I am lucky with my set or there has indeed been a faulty batch when the V4's came out.

I used my V4's quite often very close together and I have never had a problem with them. One with my Metz 58 and another with my AF360.

I did read somewhere and it is allso in one of the comments below the youtube video that there has been a problem with the earliest Cactus V4s. The tester refused to redo the test with a new set.

I just received my Cactus V4 kit with an additional receiver.
They work beatifully. I put the flash inside the house and I went outside with the trigger and it still worked from about 30-40 meters which is quite good. I think that the range will even be bigger in open field and I didn't try it until the range was to large, it started raining so I went in again