Yea I know about the gain, I've already adjusted all the presets to the point I won't hear any distortion when listening to the songs with the "closest" to clipping point I got, I don't want to lower the whole graph so that the highest peak touches 0-level as it results in an audible sound quality loss in my ears, may be due to the fact I'm not using WASAPI and using the Windows mixer, don't know but I'm sure there's a difference in the result even if I adjust the volume levels to make up for it and since there are more non-bit perfect listeners out there than me that argument becomes a moot point anyway, I always decide all the changes by my ear as I don't put too much faith in theories. With Electri-Q the distortion seems to be appriopriate to the "area" of the whole curve, if there's a range going below 0-level another can be a bit above and still won't result in clipping so therefore different presets of mine can have some of the peaks sticking above the 0-level by different amounts and still sound as "clean". I think the best compromise in this case is to do what I did, just adjust it to the point the most distortion-prominent tracks remain distortion-free by a subjective analysis.
I don't like ReplayGain since it modifies the files themselves, I just don't want any modifications to be done to the files at all, they should have the same checksum-match as before even.
Yea I explained the loading preset bug a few times already and to avoid crashing you have to load the "Custom: Stock foobar" or "Custom: No EQ" or one of the bottom 3 presets everytime in-between you switch to another as the crashing occurs when there's Electri-Q plugin in the active DSPs list in both the current used preset as well as the loaded preset setting.
If you just want a wider soundstage, remove Dolby headphone plugin and play around with the Stereo image width in channel mixer and use the default settings for everything else (disable surround etc).