Troy and family .
You have a really good scope there but doing the maths, eg 1000mm focal length of scope divided by 10mm eye piece= 100x then x 2 (for the Barlow)= a whooping 200x magnified view!!! .
That is getting up where if the EQ2 is not perfectly set up the planet will move out of the field of view very fast.
My advice is use the 25 mm eye piece first (40 x) then the barlow for 80x then the 10mm for 100x , only use the 10mm and Barlow for when you have mastered the scope and as said before. , view when the object when it is high in the sky .
Enjoy the scope. , it is a beauty , but keep the magnification down below 100x for now.
Brian.