Next time you search, go to the bottom left and choose "Show results as posts".
But yeah, I wholeheartedly agree that the search engine here pretty much blows. But it seems most forums have that problem.
Water and/or ice are great.
The taste is fine if you keep it clean.
Some use vinyl, some use silicon. The MZ thread has a bunch of info on buying tubing, about 3 weeks back (as I'm sure other threads do if you can find them).
I have a 14mm down stem which connects perfectly to my MZ stem with 1/2" inner diameter tubing.
I have used 3/8" inner diameter tubing to connect to the Launch Box then to an adapter made to fit into my 14mm downstem.
I also use the 1/2" inner diameter tubing to just get more air between me and the vaporizer sometimes, without the bong.
Depending on which vaporizer you get, how you connect it will vary, but basically it can be done with any vape in several ways. It doesn't take long to figure it out.
And I agree that there is no noticeable loss of goodies in the water or bong or tubing. Some will gather there for sure but it's minimal. The savings to your throat and lungs is worth it I think.