The side-slip cards make things much more simple Dobbs. Do we envisage doing them for each type of deck with corresponding lengths of travel for the speed of each deck. Also for the simple minded such as I what is the relevance of the colour schemes on the arrows please. I have not had much time to dwell on the idea since you mooted it as real life plus a rather unpleasant chest infection has got in the way for the last week or so. After a course of steroids I'm feeling more chipper today, but still a bit woolly in the head. Right! Which fellow said " no difference there then." Step forward that man!

Seriously a really good addition to our repertoire. Thank you for doing these Dobbs. I will certainly take them on board.

Rob.