I ruled recently that donning protective clothing takes one manoeuver for each point of Def and Soak it provides.   Seemed to work well, combining with forfeit action for additional manoeuver.

 A bit too fast for my taste, but from the mechanic point of view it may serve.

In my games it always takes minutes to get into an armour (from a few for a chain mail up to many for a plate armour). Therefore night fights by the light of a camp fire are always fight in pyjama by those characters who were sleeping and not on guard post.

Pyjama stats

Soak: 0

Def: 0

Enc: 1

we ruled it similar to pathfinder i think. there a half plate armour took around 10 rounds of combat to get into. you can still hurry a little, take fatigue and maybe risk one lower defence of soak because of that. that way the player also rolls on getting in the armour as fast as possible, i had tons of fun with phrasing out the rolls…

I like it.  Smart and simple. 

jh

 First an apology, this should have been in house rule forum not rules forum.  I goofed.

In terms of "too fast/too slow", I mostly just wanted something narratively satisfying.  Getting into Plate with its combined soak/def total would take you an entire "Act" worth of time I think.