Im almost done with my RW IFR now, and i did some simulated IFR in FW, also thinking about doing the PPL, CPL and IFR FW add ons.
TorqueStripe you are wrong about not needing X/C IFR in a heli, according to 61.65 you need: 1 X/C in helicopter more than 100NM along airways, IAP at each airport, 3 kinds of approaches.
But i think it was money well spent getting some FW IFR compared to beating around in a R22 struggling to get to the published altitudes, doing approaches and back again before the need of a refuel.