my solution:

 

PROTECH Products Sidelift Jack Pad - MODEL #1007 by lotus-gt, on Flickr

 

 

- wood will spit.

- hockey puck with a cut in it will split and won't be deep enough.

- two hockey pucks glued together?  hmmmnnn... no thanks.

 

its a twenty grand car - i don't want to risk dropping it, so why skimp over a few quid to get the right solution.

That is only a right solution if two of the four 'legs' are longer than the other two. If not, the pad will be lifting the car on the outer sill rather than the underbody immediately behind the seam. And my block of wood has a larger contact area than that pad.

To be fair, you could always cut down the two longer legs so it's a prefect fit.

 

Never seen anyone 'like' their own post before!

That is only a right solution if two of the four 'legs' are longer than the other two. If not, the pad will be lifting the car on the outer sill rather than the underbody immediately behind the seam. And my block of wood has a larger contact area than that pad.

So put the entire thing behind the seam?

That would be OK at the rear but not at the front where it would foul the large plastic underbody trim fitted on both sides of my car. A block of wood is a far simpler and cheaper alternative.

Interesting. Took my car to get two new tyres today and asked the bloke where he was thinking of jacking the car up. Quick as a flash he got on his knees, pointed to the very front of the sill and said, 'double skin sill right there. It's the same as on the back. Anywhere else, it'll bend it', and by jove he was right, although I'd never noticed it before. Let him do it looking at the before and after, and there was no damage, dent or deformation! All I noticed was that where it have been done before, the outer 'lip' was bent ever so slightly where the teeth of the jack cup must have caught it on the way up.

 

I know where the official jacking points are, as designated by the imprinted triangles, but to be honest I'm probably gonna stick with my hockey puck and that location unless anyone has any good ideas as to why not?

my solution:

 

PROTECH Products Sidelift Jack Pad - MODEL #1007 by lotus-gt, on Flickr

 

 

- wood will spit.

- hockey puck with a cut in it will split and won't be deep enough.

- two hockey pucks glued together?  hmmmnnn... no thanks.

 

its a twenty grand car - i don't want to risk dropping it, so why skimp over a few quid to get the right solution.

This with the modification suggested in post #56 is the nearest I have seen to a working (nearly) 'ready made' solution. It would then actually allow the car to be jacked up with the weight taken at the correct place.