OK first off I am pretty new to working on derailleurs, and bikes in general. I am trying to adjust the front derailleur on my GF's bike. It is a Shimano Deore LX.

I have:

- Released tension on the cable
- Adjusted the LOW screw
- Reconnected the cable
- Shifted to gear 3 and adjusted HIGH screw

Now, I have trouble with gear 2. It doesn't want to shift from 1 -> 2. I adjusted cable tension a bit at the adjusting barrel at the grip shifter, but then it won't shift from 3->2. If I adjust it back enough for it to shift down to 2, it won't shift from 1 -> 2. If I get it in just the right spot it actually seems to work most of the time but not always. I'm hoping to get it more reliable.

Should I expect it to always shift reliably no matter what rear sprocket is selected? Or should I expect trouble when the chain is on opposite ends of both cassettes?

Any tips would be greatly appreciated!