I've used the Hot Maps Classic in my LMS-320 but currently use the Hot Spots Elite in my 480. Both provide good detail and show different things on a lake. Overall I would rate them about the same and would purchase the cheaper of the two. The one thing I have noticed is the Elite maps show better when zoomed in really close (less than 0.5 miles) but that is probably due to the better graphics on the 480 over the 320. I think the HotMap chips are around $150/region whereas the HotSpots elite chips are $99. Get ahold of me late monday evening and i will probably sell my Elite chips if interested. I have the east region and south region, $75/each. I think my boat will sell on ebay monday afternoon so will sell them if it does.