Clearly you’re looking for the best dispensing system, what about a peristaltic pump? You can change tubes after every run and they’re accessible as all hell.
I haven’t tried many parastaltic pumps but was under the assumption that they wouldn’t be able to move a semi-liquid lik my wax without warming up my extract. I can’t heat my co2 oil cause even low heat will change its color.
Have u ever seen the piezoelectric pumps? They work lik a parastaltic pump but can move very viscous material.
There’s videos on YouTube about a cmes turbisc pump that provides a range in a measurement of viscosity but I don’t know how viscosity units work, any ideas?
I just snagged a used syringe pump off eBay so hopefully that will work well enough I won’t need anything else