Hey man! I'm a long time user of OOMOO 25 and here is my 2 cents .
OOMOO 25 Pros and Cons-
Pros -
*Fast cure time of 75 minutes
*Easy 2-part mix ratio
*Requires no mold release
*Requires no vacuum degassing
Cons
*Can tear easily if it is a small piece
*Only lasts around a year until the mold starts to lower in quality
Considering the price of this silicone rubber , I would Highly Recommend OOMOO 25 !
That's just my 2 cents lol Hope that helped man!
-Jacob