Hi Sleepless,
As you know I also like the design and the options of the Berkely Ergonomics mattresses. I should mention however that there is a range of pricing for the same mattresses around the country and the prices at Sovn are higher than most of the other BE retailers across the country (see post #12 here).
One of the strengths of choices like this as you mentioned is that you can make adjustments after the fact. This is also one of the advantages of buying locally from many independent manufacturers who not only will make adjustments but have the knowledge to know what type of adjustments to make. These are all certainly superior to Tempurpedic mattresses from the point of view of value and quality of materials IMO and not subject to the same initial softening so what you test is what you actually sleep on beyond the first few weeks.
Did you try any of the microcoil options and if you did … what did you think about them?
Phoenix