The boards do not come pre-drilled, this is left for you to decide how much traction you want and where you want it.
I personally ran 3 sets of Skinz boards from 2011 to 2015 and they all started to bend. The inner tubes were a smaller Wall thickness than the outer. Now they worked awesome for keeping snow build up away and much better traction. For me I did not know I could find something better till I gave B&M a chance and now I will buy nothing else. The design is better, they are stronger, the welds are better, the customer service is much better.
Now I still liked Skinz boards but for the price and they kept bending... No thanks, but thats just me.. I have heard many people say they have never had an issue.
Now I also have never ran the Pro tube and they do have the larger outer tube. After standing on a set the extra strength of the bigger outside tube was outweighed by how it felt. The transition felt very weird and was not comfortable for me while standing on the outside which is where I live. Now many say they love the extra lip because it tells them where the edge of the board is while ridding but I have never had trouble.
The new traction cleats are cool idea and I love how you can change the color but they fill up with ice very quickly compared to screws and become slick IMO. They do mount nice but they did not make me happy once I went to them.
Also just for info when installing traction screws it is my opinion to install fewer screws right near the front of the board where the toe hook is. This will allow you to still slide you foot out quickly when needed. If you install to many in this area it can aid in ankle injury as your foot will have a hard time sliding out.
Both Skinz and B&M make a much better product than stock and I would look no further than these two companies but B&M has my vote.