Although I am not real proficient in the 3D stuff, My Giles OS 160 combo is very capable abs long as the CG is back far enough. Mine weighs in at 12lb 4 oz and has 8 oz of lead as far back as I could get it. Under the stab and on side of fuse. I have tried many props. The best bang for the buck is the regular yellow tipped Master Airscrew 18-6. I have tried a few carbon props and one or two are better but nearly triple the cost. I have tried the APC 18-6W but while it had better thrust, it didn't respond to throttle changes as quickly.
I would be real cautious trying blenders and other high G maneuvers with your Giles. I have cracked 2 wings with mine. The first time was a hard outside snap about half throttle from level flight. I heard something pop fairly loud so I landed and the sheeting was cracked on the top of the wing just outside the fuselage. The second wing I don't know what happened. I was taking it apart after a days flying and saw the same cracks as before on the bottom suface of the wing. I really want to try a blender but I'm not ready to risk trashing my Giles just yet. It does do a beautiful inverted flat spin. It's a little slow coming out though.
Hovering the Giles is a learning curve and it will torque fairly easy with the right prop. I got fairly good at hovering at the end of last year but tried the other day and didn't have much luck. If you don't work on it steady it goes away pretty quick. I've been spending too much time on my heli's and not enough on the planes lately.
Keep at it,you'll get there,,,basmntdweller