Bucket was talking about turns as part of approach procedures. Going beyond this, I will go to a minimum of 30 degrees of bank, and maybe up to 45 degrees, if issued with an 'avoiding action, pop-up traffic, turn......' type advisory.
In this situation (in IMC), scanning is not a particular problem, as your mind is concentrated on just the one thing, turning.
However, more than 45 degrees in IMC is asking for trouble.
AA.