Ok......I understand that Dual Conversion is better or at least I have decided it is for me...lol
Now my problem is I have several TX units all
Dual Conversion with the appropriet crystals...........Several matching RX units all Dual Conversion with the appropriet Crystal.

My wonderful wife got me a 3D foamy with all the bells n whistles for Christmas with a Single Conversion RX.............see my prob? I don't have any Single Conversion RX crystals and I don't know if I can use this ultra light weight RX with my TX units such as the Eclipse 7.

Its a real nice Cirrus RX and the uses I would have for this with my future Foamy stuff would be most excellent to say the least but I don't know if I can use a Single conversion RX with Dual conversion TX..........anyone help with this?

Someone explained the diff between the two and compatibility or not .......several years ago...probably one of you guys. But I can't remember yesturdays breakfast, nevermind good info from 3 years ago. lol