Hi i’am just started to using Xert. and i wondering witch athlete type should i use? I will do road racing in local road race cup. from April 14 to September 28 (8 event races). One racing event last about 60 - 70 km. with some medium hills (not TDF level 
) I want to improve my overall generating power, speed, and ability to stay in middle of peleton (i’am struggling with climbing, because i heavy rider and need to generate more watts). Now iam choosed GC specialist. thanks for advice.
Welcome! Check out our support page. It has a lot of information. Here is an FAQ on choosing your athlete type. http://baronbiosys.com/choosing-your-athlete-type/