What is Reddit's opinion of BOSCH RA1151 Router Subbase Centering Pin and Cone?

From 3.5 billion Reddit comments

I've never had any luck with the style guide you have on that router.

I like to use clamping guides, clamped to the work piece, and then run the router along it. A cheaper version is the factory edge of a piece of MDF, that you just clamp onto the work piece.

Once you have that set, you have a choice to make.

1. Do you use the flat side of the router base against the guide
2. Do you use the round side of the base against the guide.

Pushing the rounder against the base is easier to handle. If you use the flat side, you have to be VERY careful you don't twist it. If you TWIST the router as you move it, it will push the bit further away from the guide, and give you a bad cut.

However, if you use the round side, twisting it won't be a problem. The center of a circle is equidistant to each point on the circle.

BUT, you have to make 100% certain that your bit is in the center of the guide. Some routers come with a cone shaped piece for center. If yours didn't, you can get one aftermarket. This tool helps you center the base with respect to the router shaft. (If it's not clear how, I can explain).