Ok, so this guy's a big nit who may have a propensity towards donking loads. How many hands does a nit flat out the BB that hit this flop well? Not many. Think he might just be donking wide here as he hits tp or better so rarely on this texture and has donked lots before. If this is so, you can probably give yourself a really great price on a bluff raise (2.5xish) to fold out his random pocket pairs etc and then just give up with these stack sizes if called. If I hadn't seem him donk bet constantly thus far, I'd be snap folding.