I am looking at getting a 20 two speed.....for a light reel to do some live baiting/bump trolling for tuna and some bottom fishing for grouper in 300'+/- of water.....what is the general thought on these reels? What is the drag a strike/max drag......and beside the graphite what is the difference between it and the Tiagra's... it will this or a 16 Tiagra