I have just seen this Live action/CGI proof of concept video of what an Shuttle SRB-derived vehicle would be like and I have just one rocket that would be adaptated for the ORBITER simulator! Boeing's SRB-X Rocket!
The now-cancelled Ares I is notorious for its high G-force, because of its powerful booster. This is one of the reasons behind the cancellation of the single-booster OmegA rocket, since it inherits the Ares I design. Imagine how nasty the G-force of the SRB-X rocket would be.