I'm assuming you've likely got a lift of some sort, so your outboard drag link end is lower than the pitman end of the drag link when compared to the stock geometry (unless you have a dropped pitman). If this is the case, moving OTK will raise the outboard end of the drag link closer to the level of the pitman end of the drag link, which will reduce bump steer. So you're actually improving the steering geometry by going OTK, generally speaking.
BUT the other component to this is the track bar and how it aligns with the drag link. Conceptually, the track bar and drag link should be more-or-less parallel, so the change in angle of the track bar and drag link is the same when the axle moves. If they're not parallel, the arc can be different and you can get relative motion which can amplify bump steer. The track bar will make the axle move in a different arc than the outboard end of the drag link, and the track bar and drag link are also different lengths, which will compound the difference in motion and make it want to steer (bumpsteer).
So if going OTK makes the drag link less parallel with the track bar, you may be making things worse. This depends a lot on what angle they both start at, because you're already starting out pretty badly for geometry
if your track bar and drag link are not horizontal. This is why the stock geometry starts out with the track bar and drag link pretty horizontal, and also why the track bar and drag link outboard ends are at the same vertical height from the ground. You'll be moving one of those points.
There are times when having the track bar not parallel with the drag link can still work very well and have everything travel in the same arc, but that range of axle motion will be very small before things go out-of-whack on either side of that point.
You could be making the geometry worse or better depending on where you're starting out. Are you lifted, and do you have a dropped pitman or dropped track bar mount?
If vehicle dynamics and suspension geometry doesn't make you confused, you're doing it wrong.