According to the Touring Plans estimates for Saturday, May 23, the wait time at RNRC at 8 PM should be about 60 minutes. That doesn't sound surprising. If you are willing and able to use the single rider line you might have a shorter wait. TP estimates it at 15 minutes, but that seems low to me for a standby wait of 60 minutes. In our experience, the single rider line at RNRC moves a lot more slowly than the ones at EE and, especially, TT, where the ride vehicle configuration opens up more spaces for single riders.