Hi alice,
glad it helped!
The red crosses are actually a good sign since it means that what you and RC selected differs.
That means that the alignment in this area is not ideal yet.
So you need to run another alignment, which should bring the errors down (if you did everything properly, and RC as well). Sometimes (more often than not) another area of the model will get a bit worse. Try not to fall into this trap! As often said and initially even more often doubted, more images would be much quicker. Unfortunatelly, like in your case it’s not always possible.
I can totally understand what you mean by the 20%. I am at it since 2,5 years (2 without longer gaps) and I still am not nearly at 100%. It’s unfortunately a steep learning curve that we have to deal with, if we want to reap the benefits of the software. Hopefully, after the epic update, there will be more time for the Devs to create more tutorials…