G'day Andrew,
I recently bought a kit of goodies similar to what you have ordered. I went for the AZ EQ6 GT mount instead.
I'm still learning the ropes and how to align etc.
The bloke from Bintel said the flattener is not necessary when a barlow is used. But as I've just found out you may need a 50mm extension tube to reach focus with a barlow.
I must look into the CLS filters for my EOS.
Good luck with it all
