Its funny but I used to own a nice 98 .177 in a CS lefty thumbhole but sold it. It did shoot great though and I sometimes regret parting with it "as you do".
They are sometimes are criticised for being front heavy but just recently, I had the pleasure of scoping in my good friend Johnbaz's 98 and it felt nice and light really, not the gun I remember at all !

A terrific air rifle and maybe one day I'll buy another !