I think I have heard of this before, but does anyone here regularly pump with regular? I have used it in emergencies in my pump, and I have injected it plenty, but I haven't reliably used it. Due to Tslim problems, I am out of Novolog and have only apidra and an old bottle of R left. I am waiting for new insurance to kick in so I can buy more Novolog, but am considering trying the R while I wait. Anyone have problems with it in a pump?