Hm, interesting question. Curious why you decided to do things exactly like that though rather than a "chunkier" taper, so to speak, with less doses per day? Also if you were taking 12 doses per day, it seems like you could have given yourself an easier ride than most by gradually increasing the time between doses, take 11 per day, 10, 9 etc to a pretty soft landing?
Actually I'm not sure if you're asking after the fact, like, how much do I need to brace myself for pain, or you're trying to judge whether or not to keep on bothering to quarter your pills. I actually think tbh that if you continued with this method you would have an easier time. The peaks and troughs in substance highs and lows have a significant impact on substance addictivity and withdrawal because, bluntly, skipping any neuropharmaspeak that I'm not qualified to speak in anyway, it's just obviously more disruptive when your brain is constantly trying to manage big ups and downs and maintain that homeostasis that made sense to evolve but actually fucks us all when it comes to powerful drugs in the present day... but also, psychologically, if you take a bigger dose at once it's also a more memorable event and every time you do it you reinforce that positive association you have with the addictive drug, making you crave it more and the sufferring of withdrawal harder to bear.
It sounds kinda like the way you've been doing it, you wouldn't have been getting that big spike for a while anyway... so... you MIGHT have an easier time. Then again, tramadol is a weird one and doesn't typically have such a rush, as far as I recall, been a while since I took any, so probably you were building up a good feeling over the day even so. I think it probably will suck a bit. BUT there might be reason to be optimistic also, probably you already weren't feeling that great for the first few hours at least of each day so you can think of it as having given yourself a little practice in enduring the sufferring, so to speak, now you just gotta get used to the shittiness of the morning dragging out a bit longer while you properly withdraw...
Honestly I don't really know but this is an interesting method of tapering, you probably did already smooth out some unpleasantness doing it like this. I am curious about what it felt like while you were doing it though, like did taking 12.5mg in the morning do anything for you? Did it suck already, or was it kinda OK? Did it get better? Why did you decide to do it like that? Sorry haha, so many questions, but just not heard of anyone tapering quite like this before. I hope it's not terrible, anyway, I think you definitely could have done worse.