I think it is more about "either she is into you or not" (and the reason may vary and be beyond your control) - women do not think in terms of 0-10 scale ( you need to ask them to think like that) - as long as you are not ugly (and the most of guys are not) you have some shot - however this shot may be highly unlikely if the woman has preference for certain type of guys at particular point of their lives due to various reasons (e.g. some women like trophy boyfriends - alpha-appearance football guy for much more academically successful college woman would be an example because that's what media aimed at her and other females consider attractive).
What is interesting, you have much higher probability for strong initial interest (and therefore IOIs) if you somehow remind her your father (if his example was at least somewhat positive for her) which explains why some attractive females go for average looking guys after "college phase" is over and decide to look for what is the best for them individually (and they start to understand that alpha-looking man was not the guy she trusted the whole life, the guy that was there for her whole life was different). In case that guy had his life under proper control and you have it too, it may be a jackpot.
The hard truths are: some crushes you have are uphill battles and it will not change due to your "SMV" which is male-oriented concept (e.g. you are moody intellectualist with various interests, very smart, nice face, but not tall - her father and brother as well as the first love interest were tall, "do the shiite, do not talk much", non- intellectualist types- women respond to your natural vibe and compare it with what they respect and consider working best. In this case it would be an uphill battle unless something else would be more important for her (this is where "negotiated interest" comes into play)
The hard truths are: if she is into you, IOIs and flirting is on the table (whatever it is for this particular female) and, if the interest is mutual, the sex is on the table (even if it is delayed or some obstacles are raised by her).
The hard truth is also: what you are or what you have will affect your success on various level with various women - if you are broke but 25 it is not as bad as being broke and 35. If you have your career in order and you aim high at least somewhat successfully (accumulating wealth meme wink) it will affect how the females will perceive you.
However, that initial imprint she has from early years of her life and prolonged experience (family life, first crushes etc.) may be crucial and you may not be able to beat that strong preference she has.
Some females like strong, silent types, some females like chatty intellectualist, some entitled princess types like obedient men (preferably with fat wallets, able to support "negotiated interest") and that's how the life is. You may have some initial success with any type of women as long as you are not in their "red zone" (usually red zone is about height, education/career success level, money - for some types - or age) but eventually you will notice that some females are more into you than the other and high level of interest-female is actually more valuable to pursue if you are after LTR than mid-level interest as you will simply have more freedom to be yourself around such a person (and have your little sins and slips like so-so diet, no exercise, nerd hobbies etc.).
This is also why it is almost pointless to try to "max out" your SMV before approaching females - you are most likely to form long standing LTR either at the end of high school/during university years OR until you are 35 - after this period, it is usually more about negotiated relationships ("his money Vs my refreshed looks" OR "he is divorced and I'm divorced/alpha-widowed/need man ASAP, let's see how long this one last") which often are really weird (e.g. guy thinks he has two "plates" but those plates treat him as plate too and "the main dish is not him" or she just has more fun around than him).
Either way, the initial interest level and IOIs just need to be there - if they are not, pursuing such a female may be an absolute waste of time. The reasons for high interest may be beyond your initial comprehension and may be detached from your looks to high degree.
