The 44 mm objective will be plenty. The light gathering ability of a 50 mm is only beneficial with a 30 mm tube. On any scope the coatings are more important than the objective being a few mm larger. You will be happy with the Vortex, I know I am. I have one in 4-12 SFP and one in 6-20 FFP. Both are clear and bright.
You can't fix stupid....however ignorance can be cured through education!