Greetings! I have an EP Apex with the 200/320/400/600/1000 stones, 2000/3000 polishing tape, and a 5000 Chosera for finishing. I had a kangaroo strop, but I think it hopped away as I can't find it. I'd like to purchase 2-4 likely Chosera or Shapton (probably glass) stones for my EP. Based on what I have read, the Chosera and Shapton stones are not nearly as water hungry and do not wear nearly as fast, with the Shapton glass having the greatest advantage in this regard. The more rapid wear of the EP stones is something I find a bit frustrating, as leveling them is a bit of a messy pain. I would prefer a stone that wears slower, uses less water, and is easy to clean. Predominantly, I am sharpening S30V/S35VN/CPM-154 for common stainless, Aogami Blue #2 and Super, 52100, and various stainless/low carbon grades for kitchen knives, occasionally M390, and one day I might have to sharpen K390 (if it ever dulls lol). Most of the sharpening is not extensive reprofiling, and the EP stones I find myself using the most are 400 and 1000 along with the 5000 Chosera - in fact, I am finding in most cases I just do 1000-->5000, and I feel like the 5000 is where the knife becomes what I consider to be 'sharp'. I would consider my burr formation skills to be about average, but it can always improve. It looks like there are at least 12 Shapton glass stones ranging from 120 grit up to 30k, and it looks like the Choseras are also plentiful in variety. I don't think I need much in the way of the coarser stones for my own usage, but I am kind of stumped on which medium and finer ones to select if I am limiting myself to somewhere between 2-4 stones and want to form a reasonable series of intervals relative to the specific usage I do. Right now, I am leaning towards the Shapton glass 500/1000/6000 or 400/1000/5000 5.5mm thick Choseras. Are these reasonable intervals for me or would this be ill-advised? Is an average user like myself going to be able to attain much of a difference with the extremely fine stones beyond 5000-6000? Anything else I should know going into this beyond the normal online stuff? I really appreciate your insight. Cheers!