Lazy jacks - attached to mast or spreaders?

As others have described on other threads, you can get the advantage of wider spread lazyjacks without having a vertical load on the spreaders. This can be achieved by mounting the lazyjacks on the mast above the spreaders, but having them pulled apart sideways at the spreaders, e.g. by means of cords between the lazyjacks and the spreaders.

As it happens I had to replace one of the ''diverters'' yesterday the thin line had broken (lasted 15 years); the lazy jack lines are fed through two small blocks at the end of the diverters. Works very well.
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If you have a stack pack with integrated lazy jacks it does make life easy. The stiffening battens on the pack hold the lazy lines open. Sailrite have great videos on YouTube about stack packs and fitting lazy jacks.
 
These are the best fittings for the mast IMG_20250910_131455.jpgIMG_20250910_131645.jpg

Made by Seasure it is a quarter block from their dinghy block range Part No 00-016. i used them with my first Kemp Stackpack over 30 years ago, and again on my current boat. Rivet to the side of the mast at 70% of the height of the mast from the deck. The offset gives a good fall for the tails and the sheave runs smoothly.
 
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