RUD makes for much faster execution if you can use lefty flicks on both U and D and keep it regripless as far as possible. Most of the speed optimal comms in lists like Daniel's, Graham's and Ishaan's are RUD. If you're going to rework your comms it would make sense to explore those comms and get familiar with the patterns and the way they are intended to be finger tricked and see how much of it you can make work for you. At the end of last year I spent several weeks upgrading my corner comms to speed optimal RUD and they are much more comfortable to execute now.I had a look at Daniel Lin's UFR list. He seems to be very much into RUD algs. There are several cases that to me seem unnecessarily complicated. Must be some gripping thing. For example, in setup moves he tends to use wide l moves instead of L. Can't be any reason for that other than him holding the cube so that L moves are impractical. Probably for the same reason some cases that could be done easily with L interchanges he did with longer and more complicated RUD algs.
When I need to set up the left layer I also use Lw. It's just because it's the counterpart to R and it feels more comfortable to do e.g. Lw R than to do L R and keep the M slice independent. For example, A perm.