Great with the 190. I have already had back surgery myself so I feel you on that. With the ruptured discs then the anti-inflammatory properties are going to be big as well because a lot of that pain is going to come from inflammation surrounding the nerves and increased pressure in that area.
So, my main recipe for my back pain is what I call 50/50. I never smoke indica but if you have it this will be the go to flower for this tincture. One reason because of the sedative properties of the indica but the main reason is because most indicas contain more CBD than your sativa dom varieties. Not always but as a general rule.
So you will want half fresh buds, trimmed or not, doesn't matter. Half stems and leaves by weight. Say 50 grams flowers, 50 grams stems and leaves. Take them all and you will want to decarb them. I use a small countertop oven. Put them on a broiling rack, the ones that have a wire mesh in the bottom so you get good air circulation. Set the temp at 240F and put everything in the over for 1 hour. I use a digital thermometer like you get for turkeys and put it in the tray, not touching the metal, so I can keep the temp at around 240. With mine, I set it at 250 and crack the door a little so the air circulates well. That will decarb your flowers and convert the THCA and CDBA to THC and CBD. If you want it more sedative you will want to bump the temp to about 300F. Your THC will then begin converting to CBN but this time only leave it for about 30 minutes.
So, once your flowers are decarbed you will take the flowers, stems and leaves and they should be nice and crunchy. Chop them up a little making sure to do it over a pan or glass plate so you can contain any of the THC that will easily come off of the flowers now. Put all of it into a half gallon glass container that you can seal. I use half gallon mason jars but anything that can be sealed will work. Fill the container with everclear. It won't take much because the mixture will be taking up a lot of room. Seal it, shake it vigorously and check to make sure all of your dry mixture is submerged in everclear. Once it is all under alcohol you will want to shake it vigorously a few times a day. I have read people say to let it set for weeks, honestly, I have never noticed any increase in potency for that long. Three days is plenty. Just remember to shake it every time you walk by it.
So, after three days or so, take it out of the container and strain, squeeze the once dry mix to free up the remainder of the tincture from it. You will have an excellent quality tincture at that point.
This step isn't necessary but I do it to increase potency and decrease the amount of tincture I need to store. Using a water bath, you will want to evaporate a lot of the alcohol off. Put a pot on the stove with water, put a container in the pot that will hold the tincture and bring the water to a slow boil. This will slowly and gently heat the container with the tincture in it high enough to boil off the alcohol and increase the potency. Make sure you have fans going and you don't stand directly over the vapors. It will seriously fuck you up quickly! I mean drunk off your ass in minutes flat, ask me how I know, lol.
So, at that point I normally boil mind down enough that I can fill 6 50ml bottles with the tincture. Each of those bottles are good for about 8-10 doses. I normally dose around 5ml but you may have to adjust depending on tolerance. Effects take about 30 minutes on an empty stomach and last a couple of hours of psychoactive high and about 6 hours of pain relief for me. You never get stoned high, it is more like an opiate high for me. A little sluggish but not too much. I am sure you could dose up to get the major stone but for me it is about the relief and I have honestly never tried to get stoned off my gourd with it. I will smoke if I want to get high.
I hope that helps you bro! I have been using this same recipe for several years now with good results and have sent it to several members with positive feedback. To me, this is the least recreational tincture recipe I have and really works for pain.