Should I rank up champs I can potentially pull as 7 stars
I'm at high level paragon almost valiant and currently own 30 rank 1s, 5 rank 2s and 1 rank 3. I've completely stopped ranking 6 stars in fear of pulling them as 7 stars. What should I do. Rank up my 6 star juggs or only rank up 6 star locked like kitty