marksta,
You may not get an answer here because so few Roadster owners are wrenchers who are willing to tackle an issue like yours. So, contact Klaus at TopHydraulics.com.
Top Hydraulics, Inc
3235 Pacific View Drive
Florence, Oregon 97439
USA
541-902-3214
info@tophydraulics.com
Be sure to fully describe your issue, as these guys are the only true experts at repairing the problems with 370z tops. Watch their YouTube videos on 370z Roadster top fixes and you'll see what I mean.
Give them a call or an email.
Gene