I am not sure how fully this applies to your situation or to others who have posted, but be aware of this from the official FAQ:

Magus: Can a magus use spellstrike (page 10) to cast a touch spell, move, and make a melee attack with a weapon to deliver the touch spell, all in the same round?

Yes. Other than deploying the spell with a melee weapon attack instead of a melee touch attack, the magus spellstrike ability doesn’t change the normal rules for using touch spells in combat (Core Rulebook page 185). So, just like casting a touch spell, a magus could use spellstrike to cast a touch spell, take a move toward an enemy, then (as a free action) make a melee attack with his weapon to deliver the spell.

On a related topic, the magus touching his held weapon doesn’t count as “touching anything or anyone” when determining if he discharges the spell. A magus could even use the spellstrike ability, miss with his melee attack to deliver the spell, be disarmed by an opponent (or drop the weapon voluntarily, for whatever reason), and still be holding the charge in his hand, just like a normal spellcaster. Furthermore, the weaponless magus could pick up a weapon (even that same weapon) with that hand without automatically discharging the spell, and then attempt to use the weapon to deliver the spell. However, if the magus touches anything other than a weapon with that hand (such as retrieving a potion), that discharges the spell as normal.

Basically, the spellstrike gives the magus more options when it comes to delivering touch spells; it’s not supposed to make it more difficult for the magus to use touch spells.