3D printed slider, drop stitch lace review

Bringing needles on the top bed to various positions can be handy in other instances, but, in this case, the discussion is on double bed work with purposely dropped stitches.
Drop stitch “lace” is also referred to as drive lace in Studio pubs, and summer fair isle in Passap ones.
The resulting knit benefits from use of yarn that responds to blocking for lying flat and retaining scale differences between the different stitch sizes.
Knitting begins with all stitches on one bed, loops formed on the opposite, and the loops are dropped at varying intervals, depending on the intended pattern, to produce elongated stitches .
Dropping the stitches can be achieved manually with any tool on hand, by sliding the ribber carriage only back and forth if loops are formed on it, or with the aid of stitch ditchers/ dumpers.
Maintaining proper needle selection and not having needles accidentally pushed back to the A position resulting in possible pattern errors is made easier and quicker with specific tools, often called sliders and sometimes referred to in early manuals as carriages, although they have no moving parts.
Knit bubbles and “stitch ditchers/dumpers” and Brother KMs “pile knitting”/ ribber stitch dropping tools share images of such tools.
I was able to obtain a 3D printed model for the Brother 4.5 mm machine, with this file available for purchase from cults3D, and its use clearly demonstrated here https://www.youtube.com/watch?v=IGjPwGqFJhQ.
It is useful to “read the manual”, or in this case, follow the video.
I chose to mark my slider for future use.
The proper placements on respective needle beds: This top bed placement is wrong, needles are still brought forward moving right to left, but are left out to D, not B on the return to the right. Beginning with single color samples.
A Studio drive lace published repeat for use with the technique
knit 2 rows, drop, repeat
12X16