I like them both, very accurate both shoulder well the 99 is.22 the 98 is .177 never shot .177 99 but have shot a 30 in that calibre and I liked that. Try a 98 if you can if you like the feel and the handling go for its very accurate. I'm a prosport fella myself that fiddly abt is a pain if your a southpaw. Go to the next boinger bash there'll be too much choice and you get some great advice, personally I've gone to buy a 95 on four separate occasions and come away with something different every time.