You make a 2-suited overcall at some level or another (2D or 4D etc)
Partner makes a forced preference.
How many of that suit are you now bidding?
Do you just cross your fingers and bid 6M, or do you try inviting pardner with 5M and risk them passing?
It's seems to me there is little science to such hands. Do you just need to "take a view"? [I hate that expression!]