HLB system for an all-in-one or self-emulsifying emulsifier like Polawax, e-wax, Incroquat BTMS-25, Incroquat BTMS-50, Ritamulse SCG, Rita BTMS-225, and so on. If the emulsifier is advertised as being a complete emulsifier, you just need to read the suggested usage rate and do it that way.
In all honesty, I have no idea how one would use the HLB system with an all in one emulsifier, except by breaking the emulsifier into its ingredients and figuring it out that way. Having said that, we don't know the ingredients in Polawax, we can't HLB value the ingredients in the cationic emulsifiers, so the only one would be e-wax NF, which I've found might be cetearyl alcohol, polysorbate 60, PEG-150 stearate, and steareth-20, and in the HLB charts, cetearyl alcohol is considered an emollient, not an emulsifier (click here for the PDF).
Lotioncrafter, we see it is listed as an all in one or self-emulsifying emulsifier. Its INCI is Glyceryl Stearate (and) PEG 100 Stearate. These two things have HLB values - glyceryl stearate is at 3.8 and PEG-100 stearate is at 18.8 - and the whole thing has an HLB value of 11.2, but we don't really care about any of those things. It's an all-in-one or self emulsifying emulsifier, meaning we only care about how much we should use as per the supplier's suggestion. In the case of Lotionpro 165, use it at 1% to 5% in the heated oil phase of our product. We should find out how much oil it can handle - for instance, Sucragel AOF can handle 20% to 25% vegetables oils, while I've found Ritamulse SCG works well for me at 8% and no more than 25% oils - and what types of ingredients it won't like - for instance, it hates esters or doesn't like cationic ingredients - and just use the emulsifier!
To summarize: If you have an all-in-one emulsifier of any sort, don't worry about the HLB system. Find out the suggested usage rates and just use them as suggested. For Polawax, use it at 25% of the oil phase. For the others, ask your supplier or refer to their website!
(In fact, we buy all-in-one emulsifiers to save ourselves the headache of using the HLB system!)
HLB system - introduction (the start of a series)
HLB system - short summary and links