Your method really does nothing for that, though.
Right now people have a 1LP. They get a 2LP and an exalt and fail the 2nd affix slam, despite having 1/3 odds. They feel bad because they still have to use the old item and no improvement happened.
With your method, you have a 1LP (with 1/4 to get the affix you want). Then you get a 2LP and an exalt and you now fail the slam because you have 1/4 odds of getting that second affix. They feel bad because they still have to use the old item and no improvement happened.
So your system doesn’t actually address this issue.
Why would that matter, though? With the current system, if you have a 1LP and go to a 2LP, you’ll have a guaranteed upgrade. Even if you fail the 2nd affix you want, it’s still better.
So this only matters for when you want to guarantee that your 2LP will have the 2nd affix. And your system doesn’t address this. Whether the item is the same as your or it’s worse makes no difference. You failed the slam and you didn’t get the one you wanted.
So the OP issue will still happen, except your system has much more RNG than the current one.
Why only those 2? Why isn’t the previous T6 imprinted as well? With your method, you’d end up with 8-12 or however many unless you managed to match the current exalted affixes with the previous one.
So each new imprint would actually make your odds worse.
Because not even 0.5% of the playerbase usually gets to even 500c? So they don’t even try Uby? Or even Aby?
The only way to guarantee this is a guaranteed outcome. Either by “Every X slams you get to choose another guaranteed affix” or some other similar system. Which will eventually lead to a guaranteed outcome.
Otherwise, if there is even a chance that it will fail, there will be players where it will fail lots of times and they will get frustrated.
So the only way to prevent that is to guarantee an outcome, which means removing the RNG at some point.
Would you be in favour of an opposite counter so that if you hit your slams 4-5 times in a row you’ll be guaranteed to fail the next one as well?
People only remember the bad results and disregard when they have multiple successes in a row.
Also, the game would have to know what you consider to be a success or a failure. If you can already guarantee the exalted affix, how is the game supposed to know that you want that specific T5 and not the other 2 T5s you have on the exalted?
Yes, failing 8 times in a row sucks and you feel bad about it. But you can also have many successes in a row and you don’t remember those or disregard them the minute the game doesn’t give you what you want.
Personally, I think having a 1/3 chance to get what you want is fine enough. Especially for what is potentially the BiS in the game.
Otherwise we’re also going to start getting pity counters for unique drops (my Kestrel failed to drop/RoA 10 times in a row, I should get a guaranteed one), for exalted drops (my T7 +to warpath failed to drop 50 times in a row, I should get a guaranteed one), etc for anything with any RNG.