Apparently the OP started 2 threads with similar titles in different sections of this forum, would be good to converge the threads somehow maybe? Anyhoot I use and am happy with the AVA/Dart carts+SigeleiZmax combo however since those carts are no longer made and I rarely feel good about loading more than .3 in there I figured Cera or Herc may be a good option for OP to consider. I have a backup AVA/Dart cart in case I ever have to send the first in for repair, it has been working like a champ for past 6 months so Cera is not in my plans for now. Since OP asked about loading 1/2g of bho the Cera EO first came to mind, then Omicron/Herc carts came to mind so to me it was pretty much TET and D9 for that load size. I do like the SWB for a simple and cheap load-and-go oil dab pen setup but do not think it can hold .5g and still function very well. I have not read reports of the AtmosRaw/new VIP functioning properly with .5g payloads. The TET Cera EO and D9 Hercules should be able to handle that large amount bho from what I've read.