Thanks PieEater
I realise it may appear that I'm in a hole and should stop digging
but I'm not daft enough to have no mechanical awareness, I've been checking the 'sight glass' (thank you, 'eye glass' did seem odd) a good time after parking up and was curious/a little worried as I've not had a bike before where there was such a dramatic difference in oil level shown in the sight glass at the two stand angles. Must be sump design (narrower?), yet as previously stated, on some occasions when I return to the bike (parked on side stand) after finishing work/or/first thing in the morning the eye glass is near full, I'll have a word with the vicar 
I realise it may appear that I'm in a hole and should stop digging
but I'm not daft enough to have no mechanical awareness, I've been checking the 'sight glass' (thank you, 'eye glass' did seem odd) a good time after parking up and was curious/a little worried as I've not had a bike before where there was such a dramatic difference in oil level shown in the sight glass at the two stand angles. Must be sump design (narrower?), yet as previously stated, on some occasions when I return to the bike (parked on side stand) after finishing work/or/first thing in the morning the eye glass is near full, I'll have a word with the vicar