No bows to report of.......the right wing still needs a couple of supports here & there,but nothing critical....as for the unsupported track on the left wing across from the logging depot....it's supported by stiff black foam blocks which sits in the middle of the track on the bend.....yet again,no flex ro report there either......Say Kellan,I can't wait for those items to arrive,sure gonna make a big difference once all is installed........so far I havn't had a big derailment,only the odd car here & there slipping a wheel,but that's it......still working out bugs......