https://www.cedarpoint.com/season-passes
Click on the "compare all benefits" button. Short answer, yes, platinum pass holders can get a fastlane plus for the price of a fastlane. When they say "restrictions may apply" I would take to mean that if they sell out, you can't get the upgrade.
From the return email I got after asking about this earlier in the month:
Fast Lane availability and pricing fluctuates throughout the season. We encourage you to pre-purchase your Fast Lane on our website, which you can do by visiting the following link: https://www.cedarpoint.com/tickets-passes/fast-lane
Note that since you are a Platinum Passholder, you are able to purchase Fast Lane Plus at the price of Fast Lane Regular. This discount is only valid for purchase in the park and can only be redeemed by the passholder, i.e. only the passholder may use the purchased Fast Lane.
Girl: "l want to ride that yellow one again... Twisted Wicker"
Me: "It's a roller coaster, not a broken clothes hamper."
You must be logged in to post