Why is propionate so hard to source?

I asked my provider why and she said "potential problem with T Prop is it can have higher spikes than cypionate".... Wouldn't the supposed spikes be short lived bc of the half life? Please chime in ladies. I just feel like it could be better than it is with the cypionate. I will say i feel much more stable and grounded once I quit estrogen and progesterone, which I posted about.....but it still doesn't compare to when the gel worked for a few months last spring but then completely stopped working. Maybe it was a honeymoon phase? But I feel like that was too long to be a honeymoon phase. Idfk but it feels like someone gave me chocolate for the first time for 2 months as a toddler, only to take it away 😅😆