calculating an item level

[Olme]

I recently aquired a  'Tome of  Greater Strength III'  which, apparently adds +3 strength to any other item.I think (although I am  not 100 % certain) that this is applied in the same manner as an elemental resistance or enhancement.When I use this  I believe it will (radically) alter the  'level required to use'  of  the item it is applied to .How can I know what the new required level would be ?I really don't want to create a beautiful new item that is beyond my means of using because the level has been bumped way up.So, I'm wondering if there is a formula someone can point me to ?Or could a GM help me out by  doing some  'off line' dry run  simulation/creations ? Any other thoughts/ideas  would be appreciated.Thanks  

[orth]

Hi Olme,

The formulas aren't an easy thing to provide, they're pretty complex and also reliant upon all the properties on the existing item. A GM can certainly help you by doing a simulation and letting you know though. I'll look for you online when I am home from work and can log in as a GM and help you out unless another GM beats me to it.

All the best,

orth