It sounds as if you are taking very good care of your hair!
Everyone has their own results with oils. I have read where some do shed more when using an oil, then there are others who believe the essential oil blends have helped with increased growth and decreased shedding.
I began using oils and blends a few years back in hopes of finding something to stop my extra shedding and hopefully help my hair grow faster. Like you great results as far as my hair went but I did tend to shed a bit more when I oiled my scalp. But I persisted because it takes time to see results or for things to adjust. I was trying out various essential oil blends. There were a couple that seemed to help but I really cannot testify to it. I also was taking a good amount of supplements, msm, and then switched to spring horsetail (silica). So all of this might be a factor as to why my hair was doing so well. And honestly I believe the msm helped to keep my shedding at a normal rate.
Yet, even so, oiling my scalp usually resulted in extra shedding. So I no longer oil my scalp unless it is just before I am washing it... the first C in the CWC.
The oil mix you are using is a very good blend. Perhaps try just oiling the length as needed, from the nape of your neck down or just the ends. My hair responds to moisture far better than any oil I have used, especially if I use the oil over a long period of time. For some reason my strands start to feel dryer. So I balance the moisture with the oil and usually oil after I have moisturize.
Like you I have very delicate hair...