Stain assistance

[mom2bman]

tain assistance
We added an addition to our cabin and need to remove the current stain and add new stain.  We used a Behr premium wood coating transparent weather proofing all-in-one wood finish in redwood stain but would like to lighten that up and add a lighter color to both.  What is a good stain and has anyone had any luck pressure washing the old stain off, maybe used something in addition to the water?  We have pine log siding.  Thanks.