3xl York-bend hooks like the TMC 200R and Dai-Riki 270 are basically garbage IMO. Too small a gape for the hook length and a tendency to fail at the bend. These qualities are especially bad in #14 on down. I defy you to hook and land a fish over 10 inches on even a thread midge tied on a #20 or smaller. There is just too little gape and too much hook shank. I probably have $10,000 invested in hooks (though it depends on how much I've tied for the winter already; I have already ordered about 4000 hooks this fall) and I NEVER EVER EVER use 3xl York-bends. Like Scott, I find the Dai-Rike #280 infinitely superior on Stimulator-style dry flies. The #285 (3xl ROUND bend) is a great choice for nymphs.