Single-exponential growth conjecture for LUBF-gaussoids

A LUBF-gaussoid is a gaussoid in the exceptional class denoted by LUBF; let $n$ be its dimension. Single-exponential growth conjecture. There is a single exponential upper bound for the number of LUBF-gaussoids in fixed dimension $n$. The growth rate of the LUBF class is unknown; the authors note that its counts appear to grow more slowly than those of ascending gaussoids, motivating this conjecture.