I lied ..... the madness was no where near over.
VERY touchy process!!!!
Okay, to date I have found Smooth-on's flex foam 3 or 4 to be the best overall outcome.
Considering:
1. Density
2. Skin
3. Floppy life like movement.
There are multiple things I had to figure out along the way. Hope this helps others.
1. Room temp must be a minimum of 75, 78 being better. 80 if you can handle it.
(Lower temps seemed to cause the foam to collapse at it's thinnest.)
2. The mold "has" to be cleaned out after each and every pull. Sure most will not like my cleaning agent but using 91% alcohol.
(ANYTHING left inside the mold will cause the next skin to stick even harder)
3. Back pressure on pour point at a maximum.
(Gives uniform density with no voids)
4. 40 grams part A / 23 grams part B.
(Although the cans say 2/1 mix ratio, on the website spec sheet says a bit more part B)
5. Mix until the very last second before pouring.
(Not mixing long enough causes horrible results)
6. Weep hole at bottom most pointy tip of dread plugged after weep out.
(seems to allow better tip expansion and equal density)
7. 2 hour wait pull time.
(Any less seems to collapse the areas you touch / pull on)
8. Be "VERY" careful removing dread. Seems the lower the density, the weaker the skin.
(The skin formed on the foam is rather thin and weak and tears quite easy)
All I hope is that this saves anyone else trying this from loosing their minds like I almost did
.