Where you are getting cuts that don't seal, have you tried inserting "anchovies" to give the sealant something to coagulate around?
My own experience is of using 38mm Schwalbe G-One tyres over a couple of seasons. Used for 60/40 trails/tarmac, including commuting. These are tyres that don't have great durability as the "knobs" do wear down relatively quickly. However using the regular Stans sealant I have only had a couple of occasions where an anchovy has been required, and never had to resort to having to put a tube in. My bikes are stored in a relatively warm room (where our boiler/washing machine/clothes rack are situated), and found that the sealant requires topping up every 3ish months. (Of course now that I have said all of this I will constantly be getting flats now)
IMO it sounds like this combination of tyre/sealant hasn't worked very well, but perhaps a change of these and use of anchovies may help you continue to have faith in tubeless tech?