Littlejock, I am very glad you have your new lens. Yes, a lens like this is more weight to handle and that does take becoming used to.   I look forward to you photos.  Please keep in your thought, your shots with the new lens will be better with more experience.   That is how it was with my f/4.   At first, I was unsure and as more shots were taken, the lens proved its real value.  The lens had not changed but I had learned how better to use the capabilities.

I am grateful for being any help here. There are many on 'rosity who know much more than I.  I am very happy such kind people reach out and share with all of us who need advice from those with more experience.

Peace to You and Happy Photography!        Tom.