Hey that photo looks familiar!
@Alaskan, sorry to hear about the recent health issue but hope you conquer that quickly.
So about 350 miles on the Allant? Have you noticed any change to the noise of the Gen 4 motor? I am around 300 miles and I started to think it was getting quieter but then I started to think that perhaps I was just not noticing the noise as much as my ear has acclimated. I feel that with the temps warming up, my range is improving greatly and I'm setting out with about 80% charge and getting range estimates of around 60 miles (Eco) - I'm riding mostly in Eco.
As for getting the hardware without the battery pack: I hope that is true for you. My LBS originally told me that was a possibility but after the bike arrived they reversed course and told me that Trek would only sell it with the pack. In the end, it worked out for me because I sold both my Haibike and my R&M Charger GX recently so I'm down to one new PP 500 and two 400s. As for the mounted hardware when not using the PP, I said in one of my posts that Trek really needs to design a small cargo bag to mount that will mount in place of the PP. I had the faux-battery for the R&M but it did not fit. I've been riding mostly without the 2nd pack because I'm only going out for about 20 miles at a time. I've sort of forgotten about the hardware being there. But yes, it probably detracts from the look of the bike - but I'd rather have the range option over the aesthetics. Again, it would be a big win for Trek/Bontrager to sell a cargo bag/faux-battery to mount here.
I also like the ability to ride the bike at higher speeds. In Eco, it feels light on power and I'm putting out a lot of energy on my own to maintain 17-20 mph. But that jump to Tour provides a lot of additional power and riding in the 20s is fairly easy. I've had a few stretches of riding around 23-27 in Tour. I think around 27 or 28 has been my max speed on a flat. I still haven't used Sport or Turbo.
Updated photo with the battery in place and water bottle mount switched to top tube in place of a lock mounted on seat tube:
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