Hi guys,
             I can't add new custom equipment. Can add production gear ok.........hope this  is not a sign that the advertising man has won and nobody makes their own gear any more.....

Just added this board:
Custom Mike Sinclair 100 x 200 cm 50 l 2010 Speedboard

So no problemo!
Please make sure you fill in all items. length etc without cm, just the nr.
Ah, I see it all so clearly now.
The l after 70 in the volume column stops the system.
I was copying what was already in the list unaware that the system adds the cm and the l.
Thanks Roger.