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I dunno...I'm an extremely shakey person and I have no problems wet cleaning sensor. It took me a while to get it the first time, but after that it's super easy. ;-)
I find the sensor swabs were a lot more pain in the butt.
What works best imho is the Copper Hill stuff. . . It's a spatula with some lint free pec pads. You tape them on, drip couple drips of eclipse on, then swab.
My method is:
1. Turn on vacuum (has a heppa filter) and stick the vacuum itself as far away as possible, and then secure the hose attachment to my work area with a heavy book. It's set so the hose is constantly providing suction right near the camera's mirror box.
2. Get the copper hill supplies + a blower (giottos rocket blower, or an electric blower). If stuff is really stuck I sometimes use an electric blower that has a dust filter. Also have a flashlight handy.
3. Turn on vacuum. Put into sensor cleaning mode and blow off sensor. Blow it off until I get as much stuff as possible off of it, checking w/flashlight.
4. Swab it, making an across, straight up, across the other way, motion. Toss the pec pad.
5. Examine with flashlight. If it looks clear, put lens on and test. If not, repeat steps.
Once you've got the oil and such off, if you get a piece of dust on the sensor during wet cleaning, don't sweat it! Wait a minute for the eclipse fluid to evaporate then just simply blow the dust off.
I also have one other thing I do sometimes if it's really being annoying and there is a hair or something:
1. Get packing tape roll from cupboard.
2. cut piece and put it inside the camera's mirror box sticky-side-up with it in sensor cleaning mode *making sure not to touch the camera insides with the sticky side*. Blow out the mirror box.
3. Dust and hairs stick to the tape and stop blowing around inside. Yay.
You can also use this procedure to CAREFULLY get hairs out of areas like the auto focus sensor. ;-0