(10+1) Am I being too weak with these hands?

[Paradigm]

Hand 1 is good, hand 2 fold preflop.

Harrington on Hold'em vol 1

"In 3rd position... I'd play AJ with a mixture of 70% raises and 30% calls. In 4th position I'd play AJ the same way..."

and he describes this as a conservative opening strategy.