I`m back,well i said i would be,Sent mind off to Deben with a explanation of what i think is not right,which is,(an bear with me as i am a layman in these fields) i think there is something wrong with the Parallax lens (if there is one).well Deben sent it back saying nothing wrong,ok i will keep trying the scope,so saying i zero for 20 yds an then Parallax for 40 it will be off to the left,also as an example i look out my window an there is a tree around 25yds away,sharp in focus an the side-wheel reads between 60 an 100yds.Been to the shop this morning an bought myself a Mamba lite,as something to use while i decide what to do with the Sidewinder.As a side note,,The Mamba reads true(ish) for the range,also zeroed the Mamba in the Garden (15yds)an the scope a little low but the vertical line 1 click out, an i mean 1 click.Surprised me. Anyway back to the Sidewinder, would i recommend ,afraid not.