Esoteric K-01 settings; any users out there?

the default filter (by-pass) is dynamically constrained with less than stellar bass. having re-read alan taffel's review of k-03, i switched to apodising 1 (S_DLY1) which was night&day better.

but i did not try all the filter and up-sampling options because there are altogether 20 combinations (5 filters times 4 up-sampling options) and each time, imo, one needs to play with the toe-in and speaker position to get the best sound. so it is a colossal work.

while the default options definitely are not the best, figuring out the right combo is something i found very difficult to do. so views and comments are appreciated.

my current setting are S_DLY1 with 2x and i continue to work on toe-in to tame too-pristine HF.

i have been reading the forum a little bit and fir-1 seems to get the unanimous vote as the best filter. in all fairness, i compared it briefly to S_DLY1 late last night with a solo piano recording and could not be sure. i will test them extensively over the weekend.

anyways, it is said that each setting needs to be broken in separately (for 500 hours!!!) and i do not know if this is true or whether i will try this at all.

anybody ahead in the break-in curve?