Hello MHRP. I can not comment on what to put into your pre as I have no experience with that unit in my own system [until later on this weekend] but I can tell you this. Tubes are not needed to be held as if they were at Chernobyl as they are not radioactive and they will not trigger a nuclear reaction. That said, to prevent the inner components of the gear they go into, you do want to use great care with their handling.
The wearing of white soft cloth gloves while handling tubes is recommended but not altogether necessary. A simple Kleenex [not the type with the lotion in it] or paper towel can be used to handle the tubes. What you are trying to prevent is the oils from your hands coming into contact with the glass on the tubes. If oils do get on the glass, a Stoner product called Invisible Glass can remove them without the removal of most lettering. With older tubes, soaking a Q-tip with Caig De-oxit followed by another soaked Q-tip with Caig Pro Gold and wiping said Q-tips in and around the pins can help to clean and prevent any further oxidation that might hamper the performance of the tubes.
When taking the tubes out, gently try to slide straight out of the tube socket. If this does not work, try gingerly swaying the tube from side to side while lifting up. When you go to reinstall the tubes, simply line up the pins and push it back in. Sometimes you might have to gingerly sway the tubes back and forth in order to sit them in properly. Just make sure that they are properly seated on the socket and you will be golden. There is no way to install them incorrectly, as all of them are "dummy proof", so there is no fear of blowing your gear up because of putting them in the wrong way.
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.
The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.
Robert R. - "Did you see my North Korea analogy? I should have named it Carversite.kim"