I have spoke with Clarke who stated that they will not be making a 3 gal tank for the WR. They made a 2.8 tank for the YZ and no intentions at this time in making a bigger tank. I spoke with IMS and they said the same. They recommended that I get the YZ tank and shrouds. I guess we are stuck. Two questions: 1. What does the YZ tank require to work for the WR? 2. Anyone using this combination? How is it?