I own a CMS and use a 1400 router with it. I purchased a router extension like the one you see in the attachment to make changing bits easier. The throat plates that come with the CMS have too small of a diameter in the opening to allow it to pass through or they are too large. I need a 1-1/2" or 38mm opening to leave the smallest opening possible while allowing the extension to freely move up and down. Does anyone know if Festool sells throat plate blanks where I could drill a custom opening in it? Thanks.