Joining mf7 primary support channel?

[theflyingpig]

Hi all,

Anyone know how to join /extend a MF7 primary support channel? The literature says "join back to back", but surely that joing to throw the level out when I come to attach the MF5 cross sections??

 

[freddiemercurystwin]

Why would it throw the levels out?

 

[theflyingpig]

Thank you!

I'm such a donkey! Should have looked at speedline instructions before I started.... I had my primary channel lying flat so that it would sit insude perimeter channel.... Doh! I see its supposed to sit vertically on top of perimeter....
Live and learn...