Ooops, after they had settled down the 45-105's really pulled on the neck, causing forward bow, and feel significantly higher tension than when I has first put them on. I have swapped back for the TI Rounds (43,51,68,89) which are slightly too low tension but better for the time being. Having ordered the Alembic 45-105s through eBay, I think I have made a $55 mistake! Should have gone for the lower gauge Alembic strings (the 40-100s) :-(