The Pre-installed cap id impossible to remove without doing damage.

Unfortunately there was an error in packing my order and this item was left out.
I reached out to customer support and they were more than happy to either refund or ship the endcaps.
It was incredibly frustrating however that the shipping took much longer 2nd time around and the tracking links were complete duds (after a recent video on the chanel about tracking links fraud!). No explanation was provided on the delay or the dodgy link, but the product eventually arrived and was as expected.

The concave is great for thunbing the black cap is stealthy and the convex cap is great for my palms

Did not affect the precision screwdriver spin. Made with the same quality as the stock. The convex cap has been a great and comfortable change since I'm a palm boy screwdriver user.

I love the colors! I love the feel of these! I appreciate that I can customize the driver!