I'm 250lbs and break frames.
I've had my RX for 5 years, no issues.
Note that my design is slightly different than the current one (that little linkage by the shock isn't there and there's no carbon bits).
Many clydes ride Titus's without issues and I consider it one of the few light bikes I would recommend to them. It should stand up to you, as you don't mention weight.
Note that its not exactly the right bike for taking off 5 foot ledges.
Also note that the Hammerhead problems only applied to trhose bikes, not RX's.