There are a lot of generalizations here being misapplied that are contributing to the confusion.
- a hydrocarbon wax molecule is typically a long chain (branched or straight) where all the carbons have hydrogen atoms attached. [BTW, as a point of interest, branched or straight is the basis for distinguishing how environmentally friendly a wax is. Branched hydrocarbons break down in the environment in 7 or so years. Straight chain hydrocarbons take more than 20 years. So eco waxes do not have to be plant based (e.g., Swix are not) and can provide the same performance and durability if they are branched rather than straight.]
- "pure fluoros" - these are compounds where all the hydrogen atoms in a carbon-based molecule are replaced by fluorine atoms.
--- an example of a long chain carbon backbone with all fluorine atoms is PTFE powder (basically powdered Teflon). It's impossible to get PTFE powder into your ski base without it being blended first into a hydrocarbon wax as the delivery system by the manufacturer. When racers use pure PTFE powder alone, they have typically corked it into a base that is already waxed, using friction to work it in to the existing hydrocarbon wax on the ski. PTFE will not clog your base because it never gets into your base as a coating in pure form. It is always dispersed on the surface wax. PTFE is always a solid; it will not melt. For the reasons stated, it will not clog your base.
--- Zardoz molecules are ethers, basically a carbon chain where some of the links in the linear chain are oxygen atoms; and all the carbons have fluorine attached ( a perfluoropolyalkylether). Unlike PTFE, this is a pure fluoro that is also a liquid. In addition it is polar. Wax is non-polar. So they don't mix. Zardoz will soak into the base and it will block hydrocarbon wax from entering the base pores. Adding non-polar wax will not displace the polar Zardoz liquid.
- fluoro waxes (like the old LF/HF's) are typically 95%+ hydrocarbon wax with a small amount of chain-carbon-backbone-type pure fluoros blended in. These are shorter chain fluoros, not PTFE, that can mix into the hydrocarbon wax. They will not clog your base. They are mostly plain old hydrocarbon wax. So technically these HF/LF waxes are a hybrid blend of fluoro and hydro.
[This next part is my opinion] I think most of the chatter about waxing/tuning with these HF/LF waxes is hearsay (what would have been called "wive's tales" in the pre-PC world). The wax has only a few % fluoro; when switching back to hydrocarbon waxes, give a HF-waxed base a few hot scrapes and there is near zero fluoro in the base. And the talk of having to use different brushes for HF waxes and hydro waxes is even worse. So if I use a brush to brush out some HF wax, it would have less than a gram of dust left on it. That dust is 95%+ non-fluoro hydrocarbon wax. Therefore only a trace part of the residual wax dust has fluoro. People would say that I shouldn't use this "HF" brush on my hydrocarbon waxed ski. I don't see how some residual wax dust with trace amounts of fluoro will get into your base from a brush that you are using to brush a hydrocarbon wax, and that is enough to influence your ski performance. Even if you assume ALL the dust that is stuck in the brush bristles somehow falls out. It's a great way to sell more brushes, but it makes no sense.
Hope this helps.
Marc