I'm just learning to slap and am having great fun with my "beater" bass (an 80's vintage Ibanez RB-999 "Bean-bass"). The RB 999 has nice wide spacing and sounds really good for the little dough I paid for it. It's the first bass that I feel comfortable slapping on. My problem is that it is strung with what feels and looks like generic Med-Heavy strings. This makes the E & A sound good when slapped but the D & G really need to be quite deliberately pulled hard, to get a nice pop. The upper strings have a lot more tension than the medium Dean Markleys I use on my Godin BG-5 or the stock strings on my Lakland 55-01 which seem to pop very easily. I'm looking for something with less tension, but still with some girth on the lower strings for slapping, but will be a bit more flexible for popping and fingerstyle. Any suggestions?