I don't normally recommend a chicken-hearted, cheese-eating surrender setup approach, cowering under the bed wondering if you dare make another one-tenth of a millimeter adjustment... will the Goddess of String-Pings exert her wrath again?

Will I ever sound in tune again in this lifetime? :sad1:
I have set up three of these things, and two of them are still on there, doing what they're supposed to do! Though, as a matter of course I just take the tightening screws OFF the bugger until I want it tight. You can put a real tiny O-ring or (more likely) cut out a tiny piece of, like, inner-tube rubber to increase the odds of those screws riding along with you hither and yon... but still. :sad: If I put them in a pill bottle in the guitar case, I know exactly where they are. :icon_thumright:
Meanwhile: In setting up a non-Floydian whammy bridge, the string tension, string brand, string diameter, trussrod adjustment, intonation, spring tension, spring type, action height (meaning saddle height PLUS post height, or saddle height MINUS post height, IYKIM), picking attack and playing style are ALL INTERACTIVE. And, then, the Tremel-No adds about three or four MORE ultra-finicky adjustments that will then also insert themselves into the whole bloody interactive muck as detailed above. The science behind this is so:
X x Y x Z x A x B x C x D x E = Howling Brain Fizzlebiscuits, OR:
X x Y x Z x A x B x C x D x E (trem-o, no! o, no! here)
TIMES %$&
TIMES MORE XZY
TIMES MORE ZQ-effers TIMES Sex-with-Pineapples.... = Viciously atomic bomb-fired totally-incinerated BURNT Howling Brain Frizzbiscuits served with fermented ratbooger gravy.
So, personally, I think it's better to first set up the guitar without the thing on there. Use their claw, of course, you may have to fidgit that a bit to start, drill a friggin' HOLE in it for the grounding wire, etc. Make the mental accommodations for it, know which block and claw holes it's using, etc. But get the thing set up pretty close to where you're going to be playing it for a while at least. I tend to use the same string gauges for at least a year on a guitar, then I may switch it up for another year or so, But I've used strings long enough (40 years? Yikes!) that I have a pretty good idea of what strings will do what where. The truss rod adjustments and SADDLE HEIGHT ADJUSTMENTS aren't actually going to affect the No-No adjustments except as they exert a tiny bit of change in overall tension (thereby affecting the zero point). But the POST HEIGHT ADJUSTMENTS and spring changes (location, number & how screwed is the claw?) are all changing the GEOMETRY. Which matters.
1) Most guitars nowadays are sold with a basic "factory" setup, all the heights are done with calipers, every guitar is setup up exactly the same, it's a necessity for a manufacturer or sales shop. But, you won't use those strings, you won't use that action height etc. I actually don't ever finish setting-up my OWN guitars - a bit here, a but there. Occasionally I HAVE to take a whack (freebie) at a student's guitar, it's that or homicide if I have to listen to the damn thing ONE MORE TIME... at which point I do do the quickiest passible setup possible. But there's no such thing as "good enough for now" with the Tremol-No. Once you lay into that part, you have to keep going till it's perfect.
2) Some people will actually let the Tremol-No work at a bit of an angle, but that's sloppy IMO. It's just dumb, because:
3) Just LET the Tremol-No straighten out it's own final location! Put a tiny, tiny dab of Loctite or silicon tub caulk, or, or, anything really. House paint? TINY dab. You want to slightly gum up just the side-to-side adjustment screw, just enough that it stays where it should be when you wiggle the whammy up, down, up down etc. Then tighten it there.
I can't imagine making a trem guitar that ONLY bends down - the tone differential of it largely comes from the floatiness! And I would happily pay twice the price if they would make a model fully MACHINED out of tool steel. And the tiny hook that fits on the block is ridiculous - what you need is a whole 'nother BLOCK with a hole machined in from the side and a STAINLESS STEEL axle mounted IN the block. I hope I get old before I die. :toothy12: