I think we might also be dancing around your question in part, because some of us don't know the other programs.
To be clear, you purchase a unit at an HGVC resort, usually floating within a fixed season. HGVC has a points value for this unit based upon the season and size of the unit. Most people use the points to work the HGVC system.
As was already stated, it doesn't matter how you got your unit: developer, resale, you aunt Edna...HGVC treats it's owners the same, except for Elite Status. HGVC reserves some perks for those who have purchased a unit or combination of units worth 14,000 points or more direct from them (the developer). Those who have Elite status love it. Those of us who don't, relish the fact we saved many, many thousands of $ buying resale.
There are two conversions which go on within HGVC and the HGVC points. One is the amount of club points it takes to book an RCI exchange. There is a conversion formula in the owners guide and it happens immediately when you book an exchange through the HGVC call center.
The other conversion is if you wish to use your club points to stay at a Hilton family hotel. Hilton's program is called HHonors and your HGVC membership includes an HHonors account. You can convert HGVC club points to become HHonors points and use HHonors to book stays at Hilton family hotels.
Otherwise there are no tricks to HGVC. You get a certain number of club points which your unit is valued and you can book stays at any HGVC resort with the points you possess, subject to availability.