Nah, sadly this most likely will not work with Q1/Q1.5 implementations - initially I was playing with monte carlo approximations (before I arrived at bucketMul), and the convergence was very slow for binary/ternary networks.
Or, in simpler terms - if you have just ones and zeroes, and minus ones, you can remove zeroes from calculations, but that's it. No good method to figure out which ones are more important than the other ones.
Also, there are no bits left to store positional information when bucketing.
There are some paths that could be explored in this fashion, but it would require a redesign of the algorithm from the ground up.
Or, in simpler terms - if you have just ones and zeroes, and minus ones, you can remove zeroes from calculations, but that's it. No good method to figure out which ones are more important than the other ones.
Also, there are no bits left to store positional information when bucketing.
There are some paths that could be explored in this fashion, but it would require a redesign of the algorithm from the ground up.