For all you experts out there. Can casinos change the rate of play on all of the slot machines on their floor easily? The reason I ask this is one of my local casinos offers bonus plays for special events, such as St. Patrick's weekend. This is in addition to the normal free slot play. Every time I go to these events the casino is packed. I get slaughtered, rarely even getting any kind of decent return. This past visit I went through $170 in FSP in a matter of a couple of hours while averaging about ninety cents a spin. I played some VP as well but couldn't catch a cold on there as well. I also didn't see much celebrating or a single hand pay the whole time I was there.