Here's a little tip to get over that 'too loud lead' syndrome...

Practice the song with the Accompaniment/Keyboard knob at 12 o'clock... but when it comes time to record it, back off the knob to favor the accompaniment (on the G70, about 9 o'clock works for me) and try to not play any harder. Adjust to taste if you can't hear the lead at all, but use as little as you can.

It will amaze you how much more in balance it will be.