Update:
Ok so even with the cool hardened bud mix from the fridge, I don't suggest the vegan caps.
After filling them, a few dissolved in places due to the oily-ness of the mixture I'm assuming.
Also, it's so messy that I don't suggest the hardened into capsules technique.
Will try the syringe into gelatin caps next and see how that works - but I wonder if the warm liquid will warp/tear the gelatin caps too?