So I got into straight razor shaving about four years ago and started off with my razor, strop, and 4000/8000 stone with lapping plate. Since then I've been getting by just fine with just that same initial equipment. Now I've been getting into cooking and not that I need it particularly, but I'd like to see how easier life is if my knifes are sharp. So since I have my 4000/8000 stone from shaving, I figure I'd sharpen my knife with that and after spending about ten minutes working at it, first with the 4000 then the 8000, just like some online suggested, with about a 25 degree angle, my knife feels almost duller. Sharpening a chef knife isn't like a razor. The razor is kept flat on the stone, a chef knife you have to more or less keep the angle for, relatively speaking, a very long blade, with no real way to maintain the angle, it almost an art. So I figure I'm either not good at sharpening (is it something anyone can pick up?) or I need to get a 220/1000 stone to start off with.

My problem is I've also been looking at this , which looks full proof and the price is about the same compared with the 220/1000 stone. So do I expand on the system I already have which may come in handy with my razor and hope I get good at it with my chef knife, or do I spend the money on a more exact and easier system? Any recommendations?