Oh, I didn't know that ... I just assumed it formed peduncle's like other hoyas. Some day I may try Hoya curtisii again ... and keep it moist. I grow all of my plants, Hoya and everything else in a very fast draining potting medium, and I know my trouble with H. lacunosa is because it stays too dry as well.
I'm bad about watering on a regular basis and some of my plants stay too dry for too long! I have three lacunosa's that are struggling and I think I might repot them into plain old potting soil and try to keep them watered more often.