I have the GT2541, and I as well have been researching this topic. I have the same criteria in terms of requirements for a ball head.
From what I have researched, the Markins best meets the requirements that I have set out. The requirements are maintenance, smoothness, weight capabilities, and over all quality. I know some of it is quite vague.
From what I have researched, the Markins method for cleaning requires a few drops of WD-40.
Cleaning and maintenance
The Markins Q-Ball is manufactured with high precision parts. Clean your unit if it is contaminated by foreign materials such as dirt, sand, salty water, lubricant, etc., to ensure smooth and trouble-free operation. Follow the cleaning instructions carefully.
1) Fasten (CW) the ball locking knob
2) Unscrew (CCW) the torque limit dial if it is set
3) Free the ball by unfasten (CCW) the ball
locking knob and remove any visible foreign materials from the surface of the ball to the ball
4) Lower the quick shoe
5) Apply about 3 drops of WD-40
6) Rotate the ball to spread the solution on the whole surface of the ball
7) Rotate the ball several times and clean the surface with clean, lint-free cotton cloth
The thin film of WD-40 performance of the ball head. Before going out to the field in cold weather, cleaning can enhance trouble-free operation and prevent from getting moisture and freezing.
This comes directly from the manual for the M10 which can be found here http://www.markinsamerica.com …eration%20Instruction.pdf
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Also the M10 from the reviews that I have read has a very smooth operation, and toque drag control. The only negative reports is the panning control (which I don't mind).
I have also read that the RRS ball head needs to be sent back to the factory in order for them to clean it out.
Of the 3 the Arcatech is the best in terms of maintenance, the RRS maybe best in overall function, and the Markins is the all-round of the three.