{3.5e} Better metamagic for spontaneous spellcasters

For my next campaign, I'm thinking of the following house rule:

==
If you are a spontaneous spell caster and want to avoid the extra
casting time for adding a metamagic feat, you can prepare the feat not
for a spell but for a slot of a particular level.

For example, you can prepare Empower Spell on a 7th-level spell slot.
You can then cast any spell of up to 5th level using that slot, and
empower it without adding to the casting time. You can spontaneously
apply other metamagic feats as well, but this increases the casting
time as normal. You can choose not to empower the spell, but you can
still only cast a spell of up to 5th level with that slot.
==

My question is, should all spontaneous spell casters gain this
ability, or should it be a feat all by itself, or should it be a bonus
feature of Quicken Spell?

On Aug 23, 5:24 pm, SeaHen <seahen... RemoveThis @gmail.com> wrote:
> For my next campaign, I'm thinking of the following house rule:
>
> ==
> If you are a spontaneous spell caster and want to avoid the extra
> casting time for adding a metamagic feat, you can prepare the feat not
> for a spell but for a slot of a particular level.
>
> For example, you can prepare Empower Spell on a 7th-level spell slot.
> You can then cast any spell of up to 5th level using that slot, and
> empower it without adding to the casting time. You can spontaneously
> apply other metamagic feats as well, but this increases the casting
> time as normal. You can choose not to empower the spell, but you can
> still only cast a spell of up to 5th level with that slot.
> ==
>
> My question is, should all spontaneous spell casters gain this
> ability, or should it be a feat all by itself, or should it be a bonus
> feature of Quicken Spell?

There already exists a feat called Arcane Preparation I believe that
allows a spontaneous caster to prepare specific spells, allowing him
to cast a spell with meta-magic as a standard action if he prepared
such. This idea dedicates the slot for meta-magic but keeps the spell
spontaneous. It is arguably better. This idea should be a feat.

Gerald Katz