Hello again @chucky-2 – thanks again for the information at there is precious little elsewhere! When you have multiple sets of hats which shows up on your birds – the most recent? I agree that the 3500 pearl set is ridiculous and you only get +3 rather than +2 for the extra expense and to get the azure slingshot, which incredibly someone in my Arena league this week already has! ( but no actual hats)
Doing the maths, if I buy the party hats as a complete set next, that will give me the silver slingshot (+2) to compensate for the birds downgrading to only +1 so I’ll be no worse off while collecting the street hats for the gold slingshot. Perhaps Rovio will suddenly start showering us with pearls in the next update as everyone realises the reality of how long it takes to reach azure legitimately – you never know!