I saw that thread, i agree its was the right thing to change it! Do you own that CF tool? I dont!
Its a tool for people that dont know correct alignment! I use V blocks and dial indicators on every shaft Before assmbly! What a total waste of time to go thru full assmbly and stick it in a hull to find out your screwed!
The problem is what is acceptable / good enough vs correct?? I prefer to do it correct, espically if a client is paying for it! Pleant of crap shops doing crap work! Sorry, not playing that game. Im actually surprised in your profession your stating something like that is acceptable?