Re: Commitment into the attack
Why not share what you know with your partner to get the kind of attack you seek?
This may not apply to you, but I hear many more experienced aikido practitioners complain about poor attacks (teachers/instructors included), but very rarely are students shown what a "committed" attack is.
A productive outcome for all involved.
I come from the school of training (in all arts I've tried) that there is no such thing as a poor attack, but rather a poor response.
my two bits.