Re: yet another annoying cross training q
agree with Ron.
There are many shortcuts...it depends on what your goals are.
The hard part is spending years studying MA and finding out that what you originally start for is much different than what your goals are 20 years from now! For that process, there are no shortcuts...it is called LIFE and it happens along the way while you are studying!
However, if you have a particular focus/goal in mind...then yes there are many ways to approach your method of study such as cross training that will be time better spent than performing an art that is very much align with traditions, culture, and ettiquette such as aikido...which BTW are very important to aikido...if that is your goal!
Good luck on your journey!