Arief, so your Geo has a 10" mirror.
Did you modify the scope in anyway for the mirror?
As you would know the Geo is produced to house a 12" or the bigger kit a 16"
I have just moved all my optics (et al) from my 16 year old 12" Lightbridge over to the 12" Geo kit.
It certainly is an improvement, lighter, more rigid and much easier to use.