I've been doing some looking around for which balls I should get for my Jurassic Park Premium I am getting soon. I'm learning to probably get rid of the balls that come with them from Stern and replace them with something better. After some research, I've found that the balls listed below are a pretty good choice.
Will these work in the JP Premium machine? (I know JP premium has some magnetic features):
SILVERJET™ PREMIUM PINBALL 1-1/16 INCH 5 PK
https://www.marcospecialties.com/pinball-parts/PB116-SJ5
Are there any other balls that are really good?