I think you just need to get use to it I weigh 127 and I have no problems pressing it even though i normally ride a weapon rocker. My main beef with the artifact is that its edges have no hold because they are bronze. The bronze edges on an artifact are super lose feeling so its hard to hold an edge into a tranny which is pretty important for just about any spin. In my opinion its not that its to soft its just that the edges dont hold very well. Don't get me wrong a softer board will deff make landing harder but if you dont plan on stomping any 60 or 50 footers I think you will b allright with a slightly softer than average tranny deck.
I dont know much about capita other than my friend says the delam easy (wont condone or support capita because I have no personal experience and dont know about their construction), but if you got the money a skate banana will jib and stop trannys beautifully. A rocker will normally be a little stiffer, but still press well because they are rocked so if I were you I would deff take a good look into rockers.
I know never sumer is commen with a new rocker and signal has a couple but the park rocker is super super soft, and their like rocker is a twin directional and is pretty stiff. Basically im just saying that all rockers are not created equal. The skate banana is one that would work well for what you want, the www rocker is probably to soft, the burton party rocker (new for next year) is probably to stiff for what you want.
Since you want to ride trannys I would look for a sintered base, true twin, and probably a stiffer torsional flex.
hope this helps