I was also a Groits user I did the same as you did on My Orient Blue 03 Sport Wagon. Then I foundhttp://www.wetpaintglaze.com/ I have not washed my car since March. when my Daughter purchased Wet Paint for my 80th birthday. Try it you will like it.My 03 Wagon is on their gallery, and on BMW's Gallery. Bluewagon
You said you used a white pad? That's a metal polishing pad; I think that after using the orange pas, thae red would have netted you even better results.
http://www.rejex.com/rejex.html Fantastic product if used on a vehicle that has a good finish......a good clay bar cleaning before using would be best! This product produces a great shine and a silky smooth finish.