Conrad Gus

Ellis' answer is great. I'd just like to add anecdotally that I know of one high-ranking aikido teacher in Japan that studied katori shinto ryu for years for the same reason. He subsequently stopped because there was not that much overlap and he just wanted to focus on aikido. Not a value judgment, just personal choice.

Sadly, our time is limited and we can't go deep down every path we come across. Choose wisely!