also a GS dob owner i can recommend them. I have had my 8" since early 2004 and it has zero rust, and all movements are smooth and easy. the altitude bearing has 2 springs for tention. I use 1 spring most of the time and change to 2 springs when carrying a heavy weight. never overbalances and never sticky. I have done no mods what so ever to the altitude. as for azimuth, you can do a zero cost mod (milk bottle washers) or get some ez-sliders or other furniture sliders to help...
optically my GS 8" is great for my needs. I have seen more detail in my 8" f/6 than i ever thought i would
