The different recipe could be bringing the flavor more forward.
Looking at your water chemistry again, do you happen to have a water softener? You Na and CL levels seem to be high.
I'm fairly new to messing with water chemistry myself, so hopefully somebody with more experience will step in and correct any info.
I was having a problem quite a bit with my beers coming out way dark, and was able to trace it back to too high of a mash ph. This may also cause oxidation in...
One of the big issues with mispronunciation comes from the fact that umlauts were dropped from the words and never adjusted for by adding an "e" after the modified vowel.
trub should be trueb (trüb)
krausen should be kraeusen (kräusen)
Makes a huge difference in pronunciation.
I second this guide. Great resource.
I would also recommend using your research and compiling a chart with your own detailed thoughts on hop aroma / flavor profiles. A lot of times you run into descriptors like "General 'Hoppy' Aroma" or "Pleasant hop flavor", which really do not help.
If they have Victory malt that is a brand name Biscuit malt. Special Roast is going to be darker and stronger than Biscuit Malt.
I would probably half the amount if I was subbing Special Roast for Biscuit.