I'm 6'2" with long arms (37 long shirt sleeves)
I didn't use risers, and that is kind of a trade off. I didn't need new lines at all.
I don't know if I like this much a forward-lean as these bars give... but the angle of the pull-back is DEFINITELY much better. (Gen-Mar risers would probably make it perfect, but I don't like the looks of risers.)
Just for giggles I ordered different set of Bikemaster "Superbike" handlebars that are $20 shipped from Ridenow.com to try out since it's only about a 1/2 hour job to swap them out.
If I like the Superbike bars better I'll sell these drag bars for shipping cost + $5.00 to anyone who is interested.
I also have a set of brand new Bikemaster "GP Touring Bars" that I'm selling... I ordered them and then found out they are almost identical in dimension to the stock bars. I never even mounted them on the bike. (They want a 20% re-stocking fee for me to send them back so I'm selling them cheap.)
You can see all 3 here:
http://store.azmusa.com/knclubhanbla.html