Well, it's been confirmed by Rohn's engineers; they say that the SSV line climbing pegs will not fit the SCL towers. That means that in order to climb my $2100 100' SCL tower, I would need to invest an extra $1400 for climbing pegs. That puts Rohn out of the competition. I am now back to shopping again for (80' minimum) self-supporting tower. http://www.longwire.com 90% CW - 100% HF