Heading up to Sodus area in early August. I do not have a fish hawk or any means to determine lure speed and subsurface water temp. Will that be a huge waste of time or are there methods to be successful - even if they may not be AS successful without all the gadgets? I have down riggers and divers. I plan to run a 6 rod spread (4 of us on the boat). Boat is 22ft long with a 175hp motor. I'm running an HDS Pro graph. Thanks in advance for any hints etc. I've been watching the reports and really appreciate that flow of information!