That's a good point about the handles. Tightening them was the first thing I tried and didn't think to mention it.
There were no caps on mine. They must've been removed by a previous owner.
As for long term effects of the vaseline, I did mine in '08 and the seals are still soft.
Now if I could find replacement screens that work well...
95 Catalina 30 Island Time
“If a man is to be obsessed by something, I suppose a boat is as good as anything, perhaps a bit better than most" - E.B. White