If it was me I would dry ice extract using a 160 or 120 micron bag and mix the hash with coconut oil for edibles. I add a dash of soy lecithin to keep the oils mixed in solution but always mix the oil well before dispensing into a recepie. A 90 to 100 micron would give the highest potency on average some would argue for 75 micron but somewhere in that range.
Dry ice is the easiest and it seems to preserve the
terpenes fairly well and if you search the National Institute of Health research papers you will find article after article with study data on how effective
terpenes are on cancer in addition to the effects of cannabis on helping with appetite. But we all know thc and other cannibinoids are very powerful as well.
Also, with dry ice processing you can use fresh flower or trim right away without curing although it does help to let the hash cure a while if you ever use some for smoking but for med I have used it fresh.
Anyway this is how my med are prepared currently. Hope this helps.