Would you consider doing a version that is stripped out of the AOB wheel and stadimeter and has instead just a reticle in milliradians, instead of degrees? I can provide you the reticule if you want, but stripping out the AOB wheel is more your work. Should be done in a few minutes, however, since it just involves deleting unnecessary stuff.
I'm asking this because in real life not all attack periscopes had the split prism stadimeter and AOB finder. That was available in the early A10 Standsehrohr, but later the cheaper and faster to produce versions simply featured the reticule. I have becomed so used to that in my own SH3 interface, that I would prefer it like that, and may be I'm not the only one
Oh, BTW, the lettering "Stangenfernrohr" in the periscope label is wrong, in real life it readed "Standsehrohr". I'd recommend adding "A10" in the model that has the AOB finder implemented, for the reasons I explained above