Here's the notes on the gaps from the website:
*Some notes to help you pick your Base Plate:
Original Base Plate - This is our current design configuration. It’s still my personal favorite and has a .68mm with positive blade exposure. This design offers a lot of user control with positive blade exposure. For a milder shave, you can change the angle or “ride the cap” for sensitive parts like the neck. For other areas, you can still have a good amount of efficiency.
- Base Plate(NEW) - This is our newest base plate. If you have sensitive skin, prefer less blade feel, have fine hair or just enjoy a mild shave, this is the one. Head shavers have enjoyed this one. This plate has our least blade exposure and a .71mm blade gap.
+ Base Plate - We reduced the blade exposure and increased the gap to .88mm. This is a nice option if you only shave every 2-3 days, as the larger gap allows for this. Early feedback has been positive for those that prefer less blade exposure, but enjoy the efficiency of a larger gap.
++ Base Plate - This one is for those who like a very efficient option. This plate is still with positive blade exposure, but has less exposure than the + Base Plate. This razor has a larger 1.08mm gap. If you have thick hair and shave every 4-5 days or just like an efficient razor, this would be the one.
This post by Dave in KY mentions views and opinions expressed and makes it known that they are "those of the author and do not necessarily reflect the official policy or position of DFS or any other member, agency, organization, employer or company."