[janoskiss (Steve H)]

Get lower profile focusser with 10:1 fine focus. You won't need to reposition the mirror then. The Saxon 10" comes with a big old Crayford that is a blessing in disguise: your primary mirror is already closer to the secondary than on other comparable Dobs in order for regular EPs to reach focus with that bulky focusser.

Even if you give up on imaging with a push-to Dob (you probably will), a low-profile focusser would still be a worthwhile investment because it will make your telescope more versatile: it allows use of wider variety of EPs, barlows etc., and it makes it easier to reach focus with binoviewers. On a tight budget even just a GSO 10:1 Crayford will yield considerable improvement. (You can always add an extension tube to a low-profile focusser to regain your earlier high-profile setup if needed. But you cannot so easily go the other way.)