Enjoy the tour
Plenty of participants complained about paying the big bucks for a 3 game showcase without "something" to play for.
Typically only the surf College "showcases" had those formats.
Regular Surf cup is normally the 3 game min up to 6 max. 5 games is lot no doubt and larger rosters and guest players are one way that's addressed.
At least it's San Diego and the games are not in the Texas, Florida, NW, CO heat and humidity where there is/was close to 100 degree days and some events where 5-7days long if you made the knockout rounds. Conditioning really comes info play and sometimes the teams with better fitness programs and large play pools do better.
Never really been a fan of consecutive days of games or double game days without proper rest and recover but it's the money $$$ machine that drives these tournaments to get in the most play in the short time frames.
My kids have played quite a few Surf Cups, and coming from AZ, its always been no more than a pre-season event, with great competition, fantastic weather, and a new season gelling event. If they went deep, great, if not, so what.
We entered, knowing the format, number of potential games and $tay to play rules. Complaints from people who know all that because it doesn't suit them gets a "meh" from me.
You're on the money with roster size / guest players. Basically, you entered, now plan accordingly. If you think you're a contender, then make sure your roster size will cope and know that your coach will rotate appropriately. If not, then you don't need to worry about 5-6 games, just enjoy SoCal in July.
From the rules - $urf are more than generous, so if you have a short roster and are concerned about 5-6 games, its on you.
ROSTERS: U15 (2009) – U19 (2003) age groups can roster up to 26 players but only 18 players may be in uniform and participate in each game. U13 (2009) – U14 (2008) age groups can roster up to 26 players but only 18 players may be in uniform and participate in each game. U11 and U12 (2010 and 2011) age groups can roster up to 16 players and play 16 players per game U8 – U10 (2012, 2013 and 2014) age groups can roster, and play up to 14 players per game.
GUEST PLAYERS: Teams may use an unlimited amount of guest players as long as they are sanctioned under the same association as the rest of the team (USYS or US Club), but are still subject to the maximum roster size rules above. Meaning – guest players must have the same type of player card as the team they are guest playing for. If a team is using USYS player cards (from any state) then the guest player MUST have a USYS player card (and it can be from any state). If a team is using US Club player cards then the guest player must also have a US Club player card (US Club cards also include boys and/or girls ECNL player cards).