tallyho!
Following a strict mediterranean diet...
I had debated a rider's rasp, just haven't got round to ordering one! Do you trim your own, out of interest?
I'm reluctant to call the farrier back out, because he's not fully lame. He's just a bit doddery / stumbly. If he was hopping lame I'd be straight on the phone, but knowing my luck farrier will show up and he'll look like nothing's wrong
Yes I did trim my old boy myself in between visits as he was diabetic (EMS) his hooves grew like stink. With my filly, I don't do very much unless I can see she has chipped a bit but she rarely does. She has feet like black granite... very hard to rasp!
Even when Malt was slightly doddery I would call my trimmer. Sometimes it was nothing to do with the trim and it was my fault for letting him out on too much grass but we always discussed things at length, make some adjustments and he'd be sound within a few days.
Do you have a pair of boots to make him more comfortable for the moment? At least then you will know if it's the trim. You just have to wait for hoof to grow.