All of us who've owned Celestron SE and CPC fork mounts sooner or later wondered why they didn't have less image shift or better focusing or less image dancing when you try focus.Sometimes you recall the one that did not have so much of these normal characteristics. Maybe you've looked into DIY improvement, there are several actually good ones for hose with the right tools and courage.
Compare the comments in this and other Cat forums about Celestron and Meade with what the owners say about Questar. Questar has a factory spec for allowable image shift! How do they do it? It has to be more than just being made in the USA
Note: I always wanted a Questar those adds in Scientific American were seductive, even without the Celestron girls. Wanting and affording alas lacked synchronicity, That aside the SE and CPC are a good value for the price. The 8SE is a bargain compared to the 7" Questar Lightweight Titanium at under $14,000 (mount and tripod extra).
So in a sense we do get what we pay for.