I don't have a Rega turntable but it almost looks like there's to much anti-skate being applied..

You might want to check your bias adjustment again and make sure everything is set to zero.

Setting up your RB303 tonearm 

With the cartridge mounted correctly and set up using the alignment 

protractor ( supplied ) . Ensure that the tracking force control and bias 

adjustment slider are set to zero. ( Pull the bias adjustment fully out to 

set zero ) . Slide the balance weight along its shaft until the stylus is 

“ f loating ” just 1mm clear of the record. The recommended tracking 

force can now be applied via the tracking force control shown in fig 3. 

Always use a force which corresponds to the upper limit of the cartridge 

makers recommended range. Push the bias adjustment slider to the 

same number as the tracking force control. ie a recommended 2.0g 

tracking force = 2.0 on the bias slider. 

I'm not sure how you got the turntable setup the way you did or why the arm springs back to the arm rest but hey, if the end result is satisfactory that's all that matters. 

I hope you have less trouble setting up your speakers.. Experiment with a few location until they sound good then fine tune them to make them sound there best... Enjoy

I too do not own your TT or its brand of TTs. The following reply is from my recollection of what I learned throughout my audio experience. I regret that I can't cite sources, as I do not remember where or who to attribute this knowledge.

The movement of the arm toward the center spindle on a smooth, uncut vinyl disk is called the skating effect. The force needed to counteract this is the anti-skating force. Some TTs have the anti-skating set for countering the force on a smooth vinyl disk.

An actual disk with grooves generates different skating forces, and if I recall correctly, it is higher than on a smooth uncut disk. If so, that may be why there is already a non-zero bias to the anti-skate force when the setting is at zero. But from your video, it looks like it is moving too quickly away from the center spindle from my experience with the arms I have (is your TT arm very low mass?).

Once you get the tracking force set right, the stylus is in the groove, the stylus won't jump out (groove blocks it) due to anti-skate unless it is set way too high. If the bias at zero setting is out-of-the-box too high, you'll get uneven forces on each of the grove walls.

One method to equalize the skating force is by testing with a record that has progressively higher groove modulation velocities recorded in them, while monitoring both channels for distortion. At some point, the stylus will start to mistrack. Set the anti-skate to a value that equlaizes the distortion in both channels.

I suggest you contact the TT manufacturer for an explanation of the skating force issue.

Personal experience:

As for tracking force, I would set this by ear. I did this on several occasions by going from below the recommended force to above it, in one-eighth gram steps. One of these steps may sound more 'focused' compared to the other steps. Then you can refine this (if you wish) by going between that one and the two adjcent steps in finer steps, until you are satisfied that it the best that can be done. Once you get there, it's amazing what sound can come out of the grooves.

I once did the above steps for a friend. He adjusted the force while I listened, in single-blind conditions. We only needed four steps what I will call A, B, C and D. Step A sounded OK. Step B sounded really good and focused. Step C sounded like step A, but also unlike step A in a way that was difficult to describe. Step D was definitely not as good as the others. For comparing steps A and C, the words "backward, upside-down, reversed, inverted,..." all came to mind, but none were truly accurate. He settled on step B setting and then listened. He said, "Oh $#!+, that's a lot better."