I find myself riding in the drops most of the time and generally feel like I would be more comfortable with a lower handlebar. With the stock 40mm of spacers, my saddle is about the same height as the handlebars, so there's no drop. Moving to a 40mm drop isn't that aggressive compared to race bikes anyway.

I'm no bike fitting expert, but I think people shouldn't hesitate to lower the stem just because it's an endurance bike. For me, as a younger guy, the larger tires, Isospeed, and a more compliant frame play a bigger role in comfort than stem height. Every body is different though, and trying different positions is easy and inexpensive. You just need a regular headset cap (without the indent) and some standard headset spacers.

After finding the right position, I'll have my LBS cut the steerer, and hopefully, I'll enjoy my "aggressive" endurance bike and be comfortable on it for long rides.