Dynathrust Props
There were some problems reported years ago about Dynathrust props coming apart during operation. As I recall, that turned out to be based on people under-propping the engines and over-revving the props on larger gas engines.
I've run Dynathrust 15x6's on my old Enya 90 4C since the day I bought it.... never had a bit of trouble with them. A bit of a "club" compared to a lot of the new designs of props out there, but they seem to work just fine.
Just select the right prop to provide a decent load on the engine and you should be fine. Guys I fly with are running APC 16x10's on their 1.60's and getting good results.... the Dynathrust 18x6 might be a bit light for the engine, but then again it is a 'heavy' prop..... give it a try. Seems to me the info that used to be included with a Dynathrust said they were tested up to like 12,000 rpm..... keep it below that and you should have no problems.
BJH