User blog comment:Russkiist/The Vosem Series/@comment-25337554-20150712040434

I have calculated up to Grand Vosem and I found out that your numbers are at chain notation level.

It is nearly $$8\uparrow^{10} 9 \rightarrow 8\uparrow^{10} 9 \rightarrow 3 \rightarrow 4$$.

I don't think it will get over chain lavel.