It seems like you guys didn't use all the samples I recorded, by detuning the guitar like this it messes up the amp sound, as its frequency response is not flat. This makes it sound bad. I would like to request you guys add all the samples that were recorded for the long notes so that there isn't this problem with the amp sound. Usually on a guitar amp speaker cabinet there is a peak around 4khz and a shelf cut after, which gives the guitar amp its unique tone, by pitching the guitar sample AFTER it has gone through the amp, it has a huge impact on the tone, as that peak is no longer at 4khz, it could be at 4.5khz, 3.7khz, or wherever depending on how much its pitched. This wouldn't cause that much problem if the sample was pitched before it went into the amp as that peak would still be in the same place. You can try this with sustain acoustic guitar, limit, and the lead or rhythm guitar IRs that are built into OS. You can pretty much pitch the acoustic guitar however you like and it will still sound ok since the sound of the ampe isn't being modified, but with this sustain distortion guitar it is, which makes it very hard to use.
Also, a lot of the beginnings of the notes are kind of bad, if that can be cut by 20ms to 40ms while importing I think that also would greatly improve the sound