Notorious,
I cannot supply the comparison you may be interested in, but I can state that the LR 32 used with Festool's hole drilling set can be used to make long rows of dead on holes. I used my short LR 32 rail, 1400 router, Festool 5 mm brad point bit to drill 5 rows on each side of a large (about 26" deep X 36" wide X 7 ft tall) shop storage cabinet so that I could install heavy duty full extension drawere slides at nearly any level within the cabinet. Each side of the cabinet had 5 rows of holes. All had to be dead on with one another, and with those on the other side of the cabinet, so that I could insert shelf support screws through all of the holes in the shelf supports. This was my first use of the LR 32 and Hole Drilling jig. I did not use the end alignment pieces of the jig. I used one of the slides to set the spacing of the rows of holes relative to the back edges of the cabinet sides, and an 18" Woodpeckers precision aluminum square referenced off the back edges of the sides of the cabinet to ensure the drawer slides would be horizontal when mounted. To my surprise, everything went together quite well, and all of the holes were aligned as intended. I made 5 heavy duty "drawers" and installed them inserting a screw in every hole provided in the slides (5 holes per slide). The drawers/slides work quite well. I don't think I could ever have done this as easily or accurately without the LR 32 and Hole Drilling jig. Because my LR 32 Guide Rail was much shorter than my work pieces, I had to "walk" the LR 32 Rail along the workpieces being drilled. This was fairly easy to do by attaching a non-holed Guide Rail to one or both ends of the LR 32, and using pencil marks and my router with 5 mm bit installed as a locating pin.
Recently I completed a pair of double bookcases with adjustable shelves. Each bookcase had 8 rows of shelve pin holes which again had to be aligned with one another. I used the large precision square to draw a line perpendicular to one of either the front or back edge of the bookshelf standards. I use that pencil line as my reference when lining up (in what will eventually be the elevation or vertical direction of the shelf standards) the LR 32. The centerline of the indexing holes of the LR 32 align in elevation with the centerline of the holes drilled by the router in the hole drilling slide jig. It is actually very easy to do using only your eyeballs.
Dave R.