Darklone said:Practised Spellcaster gives a bonus to spellcaster level that is limited by HD... I wouldn't allow it to stack with other improvements to spellcasterlevel if that increases the effective spellcasterlevel above the HD.
According to the FAQ, Practiced Spellcaster does stack with other improvements to caster level.
Does the bonus to caster level from the Practiced
Spellcaster feat (from Complete Arcane and Complete
Divine) apply before or after other caster level bonuses
(such as those from the Good or Healing domains)?
The bonus from Practiced Spellcaster applies whenever it
would be most beneficial to the caster. A 4th-level cleric/4thlevel
fighter with the Healing domain and Practiced Spellcaster
would cast Conjuration (Healing) spells as a 9th-level caster
(base caster level 4th, +4 from Practiced Spellcaster, +1 from
the Healing domain). A 4th-level cleric/4th-level rogue with
Practiced Spellcaster who activates a bead of karma (from a
strand of prayer beads) would cast her spells as a 12th-level
caster (base 4, +4 from Practiced Spellcaster, +4 from bead of
karma).