Hi Mike, with the Buddipole they have a part that they call the “Versatee” which according to the site when used with molded pins allows you to create any dipole configuration you want (including L shaped). This is what I would have thought would be a good use of this type of antenna system - i.e. have one side of the buddipole as a vertical and the other half horizontal as a single radial. Would give you the added bonus of some directionality (reduced performance in all directions other than that the horizontal section is pointing in). So if you had QRM/QRN in one direction, point the “radial” away from that direction or if you wanted to favour a different direction, point the “radial” towards the desired direction/path.
Matt
VK1MA