... I did get them on though. I used WD40. I didn't want to use a permanent lubricant like silicone. The WD40 worked to a point. They slid on reasonably easy up to the last half inch. After that it became interesting. With much pushing and shoving they would move in a bit and then pop right back out so I tried something different.
"...worked to a point." May have trapped an air bubble unless the covers have a vent hole in the end.
Right about silicone lubes. They'd go on easy and probably come off just as easy.
WD40 is not the greatest long-lasting lubrication product available but the advertising sells a lotta product. My experience is the material evaporates after a fairly short time. Good news, bad news depending on your expectations.
Anyway, you got 'em on and it's a done deal. [smiley=thumbsup.gif]