1 3/4 Doors on my house, ash. I do a lot f custom doors and most interior doors are 1 3/4" unless they are replacements for existing. Have done a lot of doors out of Tulip, no problems. I do a base coat of thinned west system on poplar doors to toughen the surface before primer.

I do disagree that you need bearing hinges. You need better than the box store junk for sure, and I have great success with cast iron hinges from Renovators. They work like magic, never have wear issues and are WAY better looking.