as opposed to normal or longer lenses. But again, it's the subject that is moving in your case as well
I have one roll of 135 format 1600 and a roll of Fuji Natura 1600 (color) in the box. 1/15 and 1/30 are normally not a problem particularly if you can brace yourself a bit. These came out nice... did you ever consider an ultra wide?
OT: after about 45+ years, I had a roll break in my camera last week. First time for everything... Got to the last frame and it seem to resist just as I was finishing the advance (of course I gave it a little push), the lead broke and I could not rewind the roll - hahaha. The camera shop guy had a change box (it was a box not a bag, with holes in the sides and black sleeves). Took him about 20 seconds to get the film into a dark plastic container and off it went to the lab with instructions
I was the happy camper in this situation.