Staedtler Mars Plastic Stick Eraser Review and a few other options

Browsing through Michael's drafting section, I came across this carded Staedtler Mars plastic retractable stick eraser. Thought it would make a suitable subject for a quick review since I never tried it before. The classic Staedtler Mars plastic block erasers are a staple in my drawing classes and studio, so I was rather curious if the stick format would perform as well.
This is the first time that I have come across a stick eraser refill with markings on the side, and it reads: "Staedtler Mars plastic 528 55 Germany". Now the question is how well does it erase compared to other non-abrasive white vinyl stick erasers on different supports.
Round 1: On this erasing performance test on card stock, the Mitsubishi E-Knock eraser and the Staedtler Mars plastic stick eraser produced the most debris.
All of the stick erasers effectively removed the 3B and 6B graphite lines from the test card stock.
Round 2: Ready, set, go!
On the regular Georgia Pacific 24 lb printer paper performance test, the Mitsubishi E-Knock eraser and the Staedtler Mars plastic stick eraser also produced the most erasure debris.
All the stick erasers worked well in removing their sample sections from the Caran D'Ache Technograph 3B graphite swatch, but the Faber Castell Pronto and Staedtler Mars plastic stick erasers smudged the most when erasing the swatch of 6B graphite. Thus any of these stick erasers would probably meet the needs of most writers that tend to use harder leads like HB or No. 2 pencils. For artists that use softer leads and might require more precision and less smudging, I would recommend trying the Sanford Tuff Stuff eraser stick. Its firm 3.8 mm eraser cores can also fit in the Caran D'Ache Museum Fixpencil 44 leadholder (see first picture of this post) and can remove narrower areas even without the aid of an erasing shield.
A sharp knife is handy for reshaping an eraser core or simply removing a heavily-soiled tip when you are in a hurry.
The erasing shield functions like a stencil with the stick eraser allowing for the controlled removal of graphite from tight areas.
The Faber Castell Pronto clutch advance mechanism is similar to the Pentel Tri Eraser. Both models are easily reloaded through their hollow push buttons and do not use holding clips like the other stick eraser models.
Coincidentally after having taken most of the pictures for this review a couple of nights ago, I found these two packs of Japanese-made 64818 Paper Mate Tuff Stuff eraser refills for a dime each in the bottom of a clearance bin at an Office Depot store the following morning. Not too shabby a find that should last for a good while since each eraser refill wears down very slowly. Stick erasers are inexpensive portable tools that help keep their eraser cores clean protected within their plastic cartridges, and they easily fit in field sketching kits especially if you anticipate the need to erase small areas. For erasing larger areas, I tend to fall back to my favorite Pilot foam eraser or a reliable soft white vinyl block eraser.