Which firmware?
I am running my Rhythm Wolf directly from my BSP via a drum channel gate out. Just a 1/8" jack to jack cable from ch8 gate out to RWolf gate in. Set RWolf to "gat" in sync (shift 13), choose your pattern and press start on the RWolf in readiness for the first gate signal from the BSP. The benefit of using gate sync over midi is you have use of the transport controls on your RWolf whereas they are disabled in midi sync mode.
Also, using the channel gate method for syncing, you can create odd patterns to gate the RWolf for a "jazz" feel. And between setting the step speed division on the BSP and the RWolf, you have infinitely more control over the RWolf than you ever would using midi. In fact, if you are playing your Rhythm Wolf using it's sequencer only, there is no need for the midi in port on it to be used whatsoever.