The Bosch ‘lift’ action of the plunge base is useless under a table - believe me i tried to make mine work, but it works fine above board. I went with the Jessem Rout-R-Lift II and fitted it to the Bosch RA1181 table - required a 1/16” trimming on all edges of the phenolic base. Used Bosch leveling hardware and made holes for snugging in place.
For $189 it is the a great value and works very well. The router motor mounts and releases easily via a hex bolt. Build quality is excellent. Highly recommend.
Common Man Woodworking