Believe me, Dave......I've never seen a Speedster here in the East with the top up. I've HEARD of one or two, mind you, but never actually SEEN them running around topped. I installed mine last Fall as I'm a snow-bird and wanted to trailer my Speedster back and forth between Rhode Island and South Carolina and not worry about it getting soaked on a two-day trip in Spring and Fall (two BIG rainy seasons).
I've found, however, that even without heat I can still drive top-up right down into the low-mid 30's and still be (reasonably) comfortable. That, alone, extends my driving year by months, even if I stayed in the Northeast. It is a laughable situation if I ever have to pay a toll and roar into the booth, open the door, get out, hand the money up to the attendant, then get back in and roar off. Of course, even if the top is down, I have to stretch way up there to hand them the money anyway!! Sometimes I find it easier to just stand up in the seat!!
Don't know what to tell you about the 1" gap. Typically, You release the tensioners at the bottom of the bows on both sides, then snap all the snaps on the back, then position the header and fasten the windshield frame latches, THEN gently pull the side tensioners tight as a last step. That should help you get everything tight without tearing the windshield off!
But then, we're hoping you never need it!!!!!
Gordon