Hi,
In my Shannon over the last 12 months I've been running aquastar brushless motor 1700kv on the
KMB 28 KaMeWa water jets, with 4s lipo's.
The only issue I've had is with the reversing buckets, when I fitted the trim tabs in the actual location as fitted on the Shannon, the thrust from the jet when in reverse hit the trim tabs and moved the model forward.