Grab a lodestar or asi120 camera and you won't really have trouble getting a guide star. I use the SX OAG and a lodestar on my 9.25HD and have never had a problem getting a lock.
When I had a qhy5 Finding a guide star was a real pain, but the current setup has yet to fail me.
This is one area where going cheap will be a total waste of money. Pony up for at least the ASI (from zwo) if you want Off axis guiding to work without headaches.
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