Whoah, okay... So, the 0.070" is too light on guitar, which maybemakes sense. It's about what I would try, but if it's too light, jump up to something heavier. If you know a place to get a .076", then try that. It's not that much thicker, so it should be a breeze to try it. I must've missed where you were using a 0.145" on the bass. For low G, that is pretty wimpy, IMO, and I love light strings, personally... I would order some Kalium strings and start from there.