I've had my F3.0 tour strung with a full bed of poly (KB proline2) at 52 and 50 and liked it. Currently I am at 55 with Isospeed Professional Classic.
For me this frame plays better at lower tensions. I did not like it at higher tensions. When I initially received my first F3.0 from TW it was strung above my requested tension and was around 60 lbs. I would not go higher than 57/56 but I prefer even a little lower. Under 50 lbs and it probably will be too powerful for my liking especially with lead added at 10:2