I just confirmed with Jane that the middle prototype will be going into production with the following changes- The neck position will be corrected, the joint will have a support, and the base will be widened. Work is beginning on first batch of 50 pieces, which means we should have a water test video soon, and will hopefully see a DP-TWIST prototype in the near future!
@weenstoned Part of the objective with these pieces is to make something new, and move away from straight copies of already marketed designs and branding. For that reason I don't think the mother or ship designations are a step in the right direction.
Also, a banger hanger is necessary for this design because it allows the use of a drop down, and a dewaar will not. If you look at the photo, both joints end up at the same height, but the DP-MINI gives more of horizontal distance between the joint and mouthpiece. The difference in dry volume is negligible, the fc-710 may even have more dry volume with the larger neck.
@deltr0n @McQuack - I designed the mouthpiece to be longer and more angled, but Jane said they were going to make the design a little shorter so it would be more proportional. A much larger or taller mouthpiece would be a step in a different direction as far as this design goes, and the manufacturer themselves wants to keep it short. The next prototype Jane is working on will be based on the FC-201, and will be an option if you want a bent neck mouthpiece.
@jojo monkey The DP-UFO is in the pipeline, and is the piece I'm most excited to see, but Jane said the DP-MINI and DP-TWIST must be made first. The DP-TWIST will be have 18mm female joint, but won't be available for a little while yet, so if you want a diffusion pump with that joint size ASAP, I recommend the fc-710 and a drop down adapter. Once the DP-MINI is available, you'll be able to use a drop down adapter with it as well.