I would like to say a few words about the strengths of #121 's concept.
The symbol implemented into the words communicates ''leading track'' at a glance without creating any possible confusion, It does not contain ambiguous imagery which could trick the viewer into assuming that its another type of business.
Ambiguity has the potential of limiting your brand message or making it misleading for its target audience.
If you need me to redesign #121 with a different font just let me know..
Best Regards
Stickie