Thanks for all your replies.... most helpful.
I guess I just like things to be slick and organised. I am sure there is an "ism" or syndrome for that condition.
I believe the consensus is that the Harris turret is sufficient so I will persevere ..... using a spread sheet or the like to make it look neat and professional.
For example the 30m marker has the 35m marker (rangemaster stiickers) overlapping it slightly and therefore you get sticker on sticker as it were and the potential for it to come unstuck. I have tested my clicks to see if it is me but it is correct.
Thanks for all your replies... it is so great to get this kind of help from the forum.
EV2 MkIV Red. Sightron SIII 10-50x60 FT.
AJP Rail. Sportsmatch ATP66.