Minimum Turn Radius for USA Trains GP7/9 G-Scale
My lucky son is getting a USA Trains GP7/9 G-scale for his birthday. The brochure says that the engine requires turns with at least a 2.5' radius. That seems mighty small for such a big train. My big HO engines sometimes have trouble on turns that tight! In your experience, what is the minimum turn radius for that kind of engine, both from a functional perspective and in terms of looks?
I'd also appreciate a recommendation for brands and types of track. If you have different recommendations for indoor and outdoor use, I'd appreciate hearing both.