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
“Only two sailors, in my experience, never ran aground. One never left port and the other was an atrocious liar" - Don Bamford