Residence park boost cap at x2.0

Hello. I had spotted this too having put 4 x 30% boost parks together so guessed you can only get to 100% (x2). I read somewhere that some specialisations only give 100% combined rather than individually (gambling entertainment and transport I think) but not sure if this is true. Before I spend my hard earned keys on things, have you tried this or does everything give a maximum of x2 (100%) in each specialisation?
Thanks.

Hello. I had spotted this too having put 4 x 30% boost parks together so guessed you can only get to 100% (x2). I read somewhere that some specialisations only give 100% combined rather than individually (gambling entertainment and transport I think) but not sure if this is true. Before I spend my hard earned keys on things, have you tried this or does everything give a maximum of x2 (100%) in each specialisation?
Thanks.

Before the last update, Gambling, Entertainment, & Landmarks had a combined cap of 100% (x2). I was mad when I bought Washington Monument and didn't get a boost lol.

Since the update, I believe every specialization goes up to x2, although I haven't tried House of Worship yet to confirm if it's the same on that one.