What's our standard for suited connectors in the blinds.

Here's two examples, and for both let's assume villain is a solid TAG.

1. You're in the small blind with 67ss, Cutoff makes it 3.5x. Are you nearly always doing one thing? (calling/folding), are we 3-betting this much?

2. You're in the BB with 45ss, button makes it 2.5x. Are we always defending here or sometimes folding/raising depending on dynamics?

Thanks for any thoughts. I'm rethinking what I do in these spots and I'm not sure what I like the most here, or even what's standard.