Modifying my Yahama T-85 for Selectivity/Sensitivity

I modified my Yahama T-85. I replaced all the fm filters (not sure what they were exactly, as I'd replaced some of them before with narrower ones) with 150 khz ones (that I got from dxer Bill Ammons). So it now has five 150 khz filters.

The downside is that there isn't much difference between the four filter settings anymore (superwide, wide, narrow, and super-narrow). So changing filter width isn't fun anymore. Suprisingly it doesn't matter too much whether you are using two 150khz filters (super-wide) or five of them (super-narrow).

The advantage is that I think I gained several decibels of sensitivity (I think from replacing old yamaha filters - the new low-loss filters have a couple db less loss than the old ones, not sure when the new ones were introduced -- or it is possible that the gain is from using a narrower filter and thus being able to concentrate on amplifying the signal). Also now I get the strongest signal meter reading for all stations when I'm in super-narrow mode, without having any distortion (probably because Bill Ammons matches the filters), except for a couple stations that are over modulating. Previously, I'd get a stronger signals in super-wide mode, because the narrow filters had higher loss (and/or were misaligned).

Now the next thing I need is a RDS decoder...

So far I've only caught one really good ESkip opening this summer. Unfortunately a lot my Eskip openings end in water or in lowly populated areas of Canada (like one opening last year to the Canadian-Minnesota border).