Hi to All,
Re: the new front roller end-caps, I drilled a hole through the end of the cap to allow oiling of the shaft where most of the wear would occur...I had done this some years ago to the original caps and very minimal shaft wear has occurred. All the wear and slop seemed to be in the end-cap itself. The front roller is rolling freely and will do its job without any slackness at the end-caps.
Cheap solution to a common problem. All good now.
