Have both of them, just got my titan to level 24 with these two helms...which should I use. Right now I have only worked on defender
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I have these plus the insurmountable one. I rotate depending what I am doing or if there is another Titan on my team. I use helm of ST IF no one else is using it as it blinds thralls in the 1st part of crota. Glasshouse was my go to for my bubble to extend it on norm mode and this weeks hard. Though I ended up getting insurmountable as it gives health back. It is really up to the way you play and what you feel most comfortable with.