Several spells, such as illusion and summoning, have a duration of "1D turns per spellcaster level if cast in combat or 2D hours outside of combat".
This statement is somewhat ambiguous. Is the outside of combat duration also increased based on the spellcaster level, or is the duration for a first and sixth level spellcaster the very same 2D hours?
Yes. Remember - these spells were designed to be simple to adjudicate and fast to play and remember... when the spell is cast without stress in a controlled manner, it has a duration of 2D hours regardless of level. When cast under duress, its duration is far more limited to the scope of the encounter. A skilled caster is able to maintain enough control of his emotions in such a stressful situation to pull the spell off well enough to last longer than a less skilled caster.
Hope I said that right :-)
BareBones Fantasy RPG is not associated with Skaldcrow Games' Bare Bones Multiverse, despite similar names. Check out Glenn's products by clicking here.