Hey shadow Do you mean in competition or street? I would say that your combo would maybe work in a competition (TKD etc) if done correctly. But I would nt say it was a street technique. Looking at the cresent kick followed by the spinning kick I would say this is the weakest part of the combo. Firstly the spinning kick will only work if you get a good hit with the cresent kick and your opponent falls back into the right range for your spinning kick or you adjust your footwork to get the right range for the spin kick, or the cresent acts as a feint and your opponent backs off into spin kick range. The combo seems to start at boxing range then goes to kicking range. What do you think of this? IMO I think its good to approach combo training keeping ranges in mind.