With long TORs fitted, a K&N air box filter and 900ft above sea level I found 125 mains and 42 pilots to be a great match. That was on a 2004 790 engine. That bike was ridden from sea level to 6000 ft and ran really well.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
