jvle95, what is a D3-5 tag? Are they issueing multi-area tags now? Haven't hunted in CA for five years now.
Your best bet for Melones would be to go in Peoria Flat rd and hunt the mtn between basecamp and the lake but you wont be the the only one or hunt Shell road but that too will have other hunters. My dad seen one of the biggest bucks hes ever seen from the lake at the very south end but didnt get a chance to get him. You could also use a boat to just cruise around, during bow season one year we seen 7 bucks together near morman creek so they are there just gotta be at the right place and right time.
As for Pedro you probably would need a boat and just go up river but its very steep, you can go all the way past wards ferry bridge I believe still and there are some good bucks there. You could hunt other parts of the lake too but Im not sure where other than to just cruise around.