2mm when it comes to rake isn't inconsequential. I believe the OP may feel the difference. OP...when you get the 45mm fork mounted, please come back and give us your impressions.

I do agree however the change would be manageable as ivan stated. One thing about steering is...I wrote to Sheldon Brown about stem length before his unfortunate passing....he said there is a pretty wide spectrum of handling from tandems to upright angle road bikes and we quickly adjust to these differences. I agree.