Hiking Table Top and Phelps

Hi all, I'm hiking TT and Phelps this weekend. Will be my first time using snow shoes. What are the trail conditions from the Loj to the trailhead? Will microspikes suffice until the trailhead? How much slower do you travel on average while using the shoes? I think the round-trip distance is around 14 miles. Any advice would be appreciated.

Thanks!