I don't believe you CAN increase.............
the weight on that trigger by much more, if any. The LP stands for: LIGHT PULL, and I believe that trigger was conceived originally as a silhouette trigger. If you get the adjustments out of sync, it may be rather difficult to get it properly adjusted again, it isn't like your basic factory job; you might look around for a copy of Ottsen's book which may give you some pointers. Sorry I couldn't be of more help.