Shed - use "deck saddles" or other blocks?

I'm building a shed from scratch. Due to distance from the road a concrete slab base is not an option (SWMBO is determined but petite, and after we built the last one she vowed never to lay concrete again!).

I was considering using "decking blocks", pre-cast concrete saddles that have notches sized for 2" wide joists. But, before I order a load of those I was wondering if anyone has had any experience of using these versus supporting the joists and sole plates on standard blocks.

https://www.wrekinconcreteproducts.co.uk/products/wrekin-concrete-products-decking-block/

My thinking was to dig down to firm earth, fill the hole with compacted aggregate and lay these on top, with the joists in the saddles. Add or subtract aggregate to raise or lower the blocks to ensure the joists are supported level. Does that sound about right? The reason I'm scratching my head about this is that then the deck block is only steadied from underneath by friction, so I'm not sure if it offers any benefit to blocks without a saddle.

Never considered it before but I suppose if you rest the shed joists in the saddle, and the blocks move, there is a danger they may twist the shed out of alignment.
How about using the saddle blocks but build a frame into them and then board it over with some thick ply? You could then anchor your shed to the new base?

The other option is to lay the base dry and then very gently water it after the dry mix has been smoothed down, worked for a shed I had installed about 20 years ago. Much less effort to turn the mix over while dry.