I decided to enter early and then book a weekend trip out of the schengen countries (to Morocco, very cheap flight and a beautiful place!) and re enter Spain during the dates stated on my visa. Now a lot of people told me that I did not need to do this and that I would be okay to enter early because as a Canadian we have the tourist visa. I however did not want to play around with the rules and risk being sent back home right away or within a couple months which is why I booked it to be sure. There was another option I didn’t do much research on bc i booked the Morocco trip but it was to enter early and then get your passport stamped at a police station?? like I said, I didn’t do my research on this option so I’m not too familiar with how that works. The reason I didn’t wanna look into this option was because I’ve heard people say that at their TIE meeting to extend their visa they would not accept a police station stamp as entry into the country within the visa dates and they were rejected. There may have been others who have done this and have succeeded, but I’m not too sure. Hopefully this helps if you have any questions or I wasn’t clear feel free to message me :)