Originally Posted by
TMonk
Maybe a better question is "how much faster" is the road bike. The short answer is: not that much. The more techy/punchy the road course is, the more it would be an advantage.
What do you mean by "techy/punchy?
Since you're from San Diego, you understand about the roads. Riding south of Miramar on a road bike with <35mm tires is not fun. I have a "South of Miramar" and a "North of Miramar" bike.
I love my gravel bike ("South of Miramar" bike) and based on the advice here, I guess there is no need for an (another) N+1.