I've browsed through this book and noticed that there was a little Gracie bashing here and there.
During Grapplers Quest, my son was rolling against a 10th Planet JJ kid during a no-gi match. The boys coach was pretty confident in his students [no-gi] abilities. There was no doubt that the young man was very good but he still lost to my son who trains under Gracie and trains in Gi only (with the exception of some wrestling classes on the side.)
IMO, I say train in both if you can but if I had to choose just one, it would be gi.
During Grapplers Quest, my son was rolling against a 10th Planet JJ kid during a no-gi match. The boys coach was pretty confident in his students [no-gi] abilities. There was no doubt that the young man was very good but he still lost to my son who trains under Gracie and trains in Gi only (with the exception of some wrestling classes on the side.)
IMO, I say train in both if you can but if I had to choose just one, it would be gi.