Ok guys I've got my answer.
First of all...I emailed Jason at JConcepts and he said honestly he would recomend using one and if his drivers start experiencing problems then he will look into it.
Secondly...I just got off the phone with Kimbrough. They informed me that Airtronics and JR have the same spline count...(23). He also gave me a part #113 that is small enough and should work for mine.
Here's the bonus! My local hobby shop has one in stock for a mere $3.60!