Friendly matches...weaker or stronger opposition?

[spornybol]

i play weaker abandoned team/teams and use reserve as it does not matter if i get injury and the score does not matter i`l still get 2 blue 1 green and a red if no booking

[DiZZee]

Posted before J4 came thru.
I hardly ever use the blue booster. IS there a purpose to this?
I saw the players morale jump 10 points after a friendly and also lose points ad well???

[DiZZee]

So level 6 going on 7, cash from friendlies is 15k for a full house and 20k for 2% possession. Immaterial.

Do I then wait for later on to earn meaningful gate fees and stay away from friendlies?? Or do I go for skill points and experiment against a weaker team? I can get 3 to 4 friendlies a day against two very weak teams, but the players are not getting the gain as from a higher level team, but again, the risk of injury. What to do?