A 1000 grit waterstone is just a hair finer than a soft arkansas stone, but the cheap ones will require
frequent flattening. That's my biggest complaint with the waterstones. They cut great, but I want to spend the time maintaining my blades, not my stone.
If you want to stick to natural stones, go to the KME sharp site and order the arkansas stones from Ron. At a 1/2" they're thinner than most out on the market now and less expensive. The one I have is great.
Or get yourself a Norton combination India stone, then the soft arkansas. That'll take care of most everything. Usually the only things I take to a finer stone (up through the hard arkansas and black arkansas) are woodworking tools and razors (or knives I'm planning to shave with
)
Or spend the extra money and get a coarse diamond plate for heavy metal removal, then switch to the soft arkansas stone.
If your problem is maintaining a consistent angle, buy the KME sharpener (or Gatco, Lansky, DMT etc.) The medium stone on your trihone should be a soft arkansas or the man-made equivalent. They can glaze over or have the grit clogged with shavings if you're not using enough oil. Clean it well and you may get better results.