EPADEL March 29th Puzzle

I'm going to be speaking at the MAA Epadel conference on the 29th, so I decided to promote it by making a puzzle for the conference.  The clues are based around the numbers 2 and 9.  Circles are given whenever the sum of adjacent cells in a cage is 9.  Diamonds are given whenever the difference of adjacent cells in a cage is 2.  Those are the only rules.  Don't forget that since clues are placed whenever possible, lack of a clue also reveals necessary information.  

I made two puzzles.  One is easier with more cells revealed at the start, and the other I'd consider to be more of medium difficulty for someone familiar with sudoku.  

I have a solution and PDF versions below.  I'll also add a link to the conference which is taking place not far from Harrisburg, PA.  I'll be speaking about the Padovan numbers.  

[Solution, PDF version 1, and PDF version 2 here] • [Conference Program here]