OK Results time. Apologies for the delay, it took longer to actually get 20 proper approaches down for each, and the audio recording thing never really worked. Anyway.
Day 1+2: Indirect "Starbucks opener" - 20 Approaches
2 - Said "no thanks" as if I was offering them the big issue or something

6 - Gave directions / didn't know, in a hurry and walked off before chance to transition
7 - Managed to transition by bodyrocking away slightly, then commenting on something about them like what they were wearing or some kind of cold read. Got onto an ok conversation but no real momentum or chemistry, thanked them and said goodbye.
4 - Transition went well, got them laughing, DHV'd, bit of qualification, number closed.
1 - Insta-date at nearby coffee shop that was "much better than starbucks"
Day 3+4: Direct Opener - 20 Approaches. I toned this one down slightly to "I really like your sense of style, it's really well put together" + something to do with colour blocking, elegance, hipster, retro, or whatever was actually related to what they were wearing.
3 - Cut me off before could deliver opener because were "late" or "busy" etc...
1 - Really sarcastic "thanks" and immediately walked off. Bitch.
5 - Transitioned, usually some kind of cold read relating their fashion sense that I picked up on to what kind of person they are / job they have, e.g. "you strike me as a creative type of person, I bet you work in design or publishing." But either didn't get n-close or conversation didn't go well enough to bother asking for it.
7 - N-closes!
4 - Insta-dates
Now I haven't tested the flakiness level of the numbers, but looking at these results, it's clear to me that going direct is the best way to get more numbers and more dates. I would say the most important things to make sure of when doing day game versus night are:
1. Body language is super important - where you stand and how you stand can mean the difference between getting completely ignored or being able to create attraction quickly in the 5 or 10 minutes you have.
2. Transition super quick into something interesting, try and relate something she says to a DHV story and qualify out of that so that you have a 5 minute skeleton outline in the back of your mind to run. It sounds very routine based but I can't see how you can get anywhere unless you move through the steps quickly.
3. 3 light kinos on arms/shoulders is enough, remember to kino her for compliance / when she passes your screening questions / makes you laugh, etc. I do double kiss when I say goodbye after getting n-close, that's European not sure if Americans do that, but it allows a nice touch on small of back which is useful.
I'm really coming around to direct day game. I think it's much better than direct night game because going direct in a club requires a massive amount of social proof or great looks, etc. During the day it's just you and her. Your confident attitude is already raising your value so as long as you stick to your guns you can have a great time. It's also fun because you're not likely to fall into the trap of being too outcome oriented. Since it's unlikely a girl on her lunchbreak is gonna go back to your place, then your goal is simply to establish attraction, rapport and some comfort and arrange a time to meet again by exchanging info. At night there's all this pressure to get all the way to seduction and f-close in a few hours, which can start bringing out this neediness and anxiety that none of us need. Also, with a street full of people nobody will ever actually notice you get blown out, so social proof, value, etc. is solely based on how you present yourself, not any external factors.
If anyone has any ideas for my next challenge, I'd welcome them. I think starting next week I'm just gonna work on getting as many high quality numbers as possible. Then I might start working on how far I can push kino escalation in public (can you k-close on the street?), and then if the girl is on holiday or not working, maybe see if I can get through comfort quick enough to get a SNL (or I guess S*D*L!).