What I heard from a lot of cellists, including the one that played in that recording is that usually cello sonatas try to keep the cello above the piano, so a lot of the instrument low range gets thrown out. I did the exact opposite, and unfortunately this version of the recording had the cello at too low volume (the mic was next to the piano instead) so it doesn't sound as distinct as it did live. I think that it's not the register that matters but what each instrument is doing, so you can make the piano and cello occupy the same space and yet have them sound different enough that nothing gets muddied.
I was going to get this re-recorded, but then stupid virus happened. Maybe I'll still do it next year, we'll see.
As for measure 108, I think it needed more loud and drama. I tend to write out my dynamics more than actually just indicating them, but even so I don't think the cello alone would've done the job since I just like how the piano sounds hammering the octaves there.
This was a live recording of a concert I put together last year and there was a technical problem with this performance so, uh, I salvaged what I could. Hence, why I want to get it re-recorded properly. There's a pretty big mistake in the first movement too, which is annoying. But well, the show must go on and I couldn't have'em stop and do it over and due to ...logistics, I couldn't record the final rehearsal, which is usually my favourite time to record stuff since there's no audience and the musicians can concentrate more and if we need to do over we can. I'm not making this same mistake again, that's for sure.