Good Day Gungadin,
The best prop I found running this engine was a 16 x 8 APC 10% fuel and turning 9400 peaked and about 88-89 to fly. This worked very well.. I would go with the APC 17 x 6 (At the time they were not out yet.) I would say a 16 x 6 is a bit light for this one..
Hope that helps.. alot of people don't like the TT engines.. I flew 250-300 flight with one I had and sold it and the fellow that bought it put another 200 plus flights on it.. He has since changed the bearings and reringed it.. and it's running strong again..
All the best