My mid set up is 3 Buzzz's, ESP Hornet, Comet, Breeze. I really only keep 3 Buzzz's during the week because I just familiarize myself with different ones. However, to comment on the Glo Buzzz, it is more stable. However, I have a couple heavy Z's that are just as stable as my Glo Buzzz's. There was a comment about the Hornet being less glidey. While that is very true for Z Hornets, the ESP Hornets have an exceptional amount of glide. I understand you don't like the feel of a Hornet, but there is really nothing in Discraft's line-up that will give you that stability, at least not the same amount. A Wasp is a little less stable and the Drone is a meathook in most cases.
If you are sticking to Discraft for a certain reason, I would say give an ESP Hornet a try as they are generally a little more domey and have a considerably high amount of glide as compared to Z Hornets. If you are willing to try other brands, maybe give the Cro from Innova a try as it is similar to the Buzzz in feel but with more stability, however like the Hornet lack's a little glide.
Glo Buzzz's, Heavy Z Buzzz's, and ESP Hornet's may be a good option. Wasp as well if you like the beaded feel. Just my $.02