3.5 adventures: monster conversion to Pathfinder

[Ironballs]

Hi,
I'm currently running my pathfinder group a 3.5e adventure, for low level party - level 4.
generally looking at the encounters and enemies, they seem slightly weaker then they should be in Pathfinder (most enemies are custom content in the adventure) so I usually simply add them +1 to AB and damage to slightly scale it more toward pathfinder conventions.

so far it seems quite balanced for low level encounters. however, how should I handle it once the challenges will be higher? a simple +1 adjustment wouldn't suffice...

is there some sort of convention for converting monsters from 3.5 to pathfinder easily?
I'd be happy to hear your suggestions.

thanks.

[wraithstrike]

The lower CR's are easy. It is the higher level things that are 10 and up that get difficult.
I would only update major NPC's to save time. Then go back and do any minions that need to be redone.