I've seen a racing car being prepared for speedway track with all left hand turns by putting bolt in steel spacers on the coils in a similar manner to stiffen up the suspension on the left side of the car.
Every coil supports a certain amount of weight. This is spread evenly over every layer in the pack (unless they are tapered which these are not) By welding up the coils you are doing the same as cutting them off and putting a block on the bottom to make up the space with a shorter pack.
Each remaining coil now has to support more weight so they will bend and travel more before reaching their matching resistance = Softer ride.
If they reach full flat compression the whole coil pack is taken out of the game no matter how long they are but that is not the discussion.
To my way of thinking that the coils have been welded together it will be firmer because those coils are still there and not removed they still will have some action left in them and since they are no longer going to deflect that will make it stiffer.
Cheers Cobba & Cobbarette
Coopernook, The Centre of our Universe.
Oliver I reckon it just might work. It is only an after market airbag of the same design which is a common mod for those wanting better rear springs for towing etc. Only downside is longevity - I am sure a basketball would not take the rubbing a proper air bag would.
These Russians are pretty cool blokes.
The following user(s) said Thank You: cobbadog, oliver1950