I am looking for a new compass. I like the Brunton 15TDCL but I am also looking hard at the Brunton 8099. My questions: Does the 8099 have luminous points? Do the base plates on both compasses offer the same information? What can the 8099 do that the 15TDCL can't? Is the 8099 worth the bigger price tag? Thank you in advance for all your input. Any and all points of view are greatly appreciated. Thanks again.