Yes - this is a very common mature and high-status attraction mix. The IS/IH is my favourite over IO for quality rather than quantity in conversation.
However as you are 20, it might well be better to consider IG instead of A314 as it has a lighter more social feel that is far more in tune with your age. If you are looking at girls your age or younger, A314 can be too much - A bit like their dad, uncle or some other old guy coming on to them. However if you are interested in older women, A314 cound be right up your street but you can get exceptions at any age, either way.
App points - read this:
but don’t get too hung-up on them. So long as it is open to the air and has good blood flow to diffuse well, you are fine.