I feel you there. I often will sit there and save a "get well" dose just for the morning if I can get more the next day. Then even if shit gets delayed the day won't be horrible. But, then I'll be sitting there close to bed time and look at the little I plan to save, I think 'not worth, might as well get real high now'.
So then I do it and leave myself nothing for the next day. I just did what is probably 50% larger than my average dose...Yet, I won't get a good high. I just decided to leave myself nothing for the next day and that mind fuck takes over and brings you down, ruining the high.
Very similar is if I need to take a $ or tolerance break and I know it'll be the last high I have in a while. I always do more, and it always seems I don't get as high as I was anticipating. In that case the fear of switching to Subs and waiting until I'm sick enough, plus the couple days I will be mildly sick, will take away from my last high. I think it s a combo of over expectations for getting high that one last time and dreading how once this wears off I am sick for a day or 2.
Weed becomes so much more important once I quit doing dope. I was for real freaking that I might run out this weekend before I finally found so e from a random aquantence.
No kidding, I burn down a bone or two a day when I am off h. On it I don't even feel a need for weed. Not completely opiate clean, on subs, but I am bored when just chilling w/ only subs, so weed helps a lot.
edit: oops, kinda high right now and f'd up trying to add a second post to my first one.