cheek blocks: bearings or no bearings

[Brion Toss]

Hi,
I'll just add that this is also an opportunity to reduce loads, and thus friction, by positioning the collectors so that the lines form the most open angle possible. This typically means moving them as far aft as you can. If you calculate the reduction of load, it might even be possible to use a lighter, cheaper block. Further, if the layout allows, put your highest-loaded lines on the inboard sheaves, where there will be less of an angle than outboard.
Fair leads,
Brion Toss