I have bike master adjustable risers with protaper kx high bars (about 1/2 an inch higher than stock but more important a 1/2 inch less pull back) the bars with risers are about 2 inches higher than stock.
I have the risers one step from full height, the wires are maxed out at this height but the cables are fine.
The bars are right where I want them now I have no need to go higher.
I like the risers as you can pick the height plus they're only 40 bucks.
If you know the exact amount of rise you want the tusk risers are cheap and easy.