my goto source for 1s hyperions is (allerc.com
However, for 2s UMX packs, rcgroups user RCBABBEL sells custom made packs with a beast connector, and they are excellent.
For 2s applications, the Babbel packs are the way to go.
for his price list info.
Also, I ordered a single pack on a sunday, i had it in hand Wednesday. (idaho to socal).
anyway, my LHS says new 3d beast will be in tommorrow. yAy!