Hey, thanks Gaieus! just started reading your reply when the graphics card died on me (luckily a mate had a spare card) so finished your reply 2 hours later!! and works - cheers.

Look at the youtube video - I must say, why do people post them with NO sound or clear instructions?, anyway, half way through the silent one highlights the spirals and chooses one to keep - what is the shortcut for doing that selection/deletion?
Also, if there is an easier way of making Barley twists then I am all ears. Thanks.

Thanks Chris - all sorted now.

Incredibly new to Sketch!! so hopefully i can describe corrrectly what i am doing in order to create an ogee atop of a headstone.I have made an ogee top for a memorial.
I create a memorial shape, push pull to 4"x2'-6x2'-0 slab.
I have to creat two arcs to mnake the ogee shape. When i use push pull, there are the lines where the two arcs meet - i want to get rid of the lines without 'opening' up the top section. When i shade the top, the lines will remain. Hope I have explained well enough..