Base proc rate is "100", equating to 2 procs/minute average, or 3/minute with AA Weapon Affinity 5. Combat Effects add to that base "100" number. So if you managed +100cfx (highly unlikely), you'd double the frequency of procs. Some weapons have an innately higher proc rate, or lower. The Time Lapse cudgel from p3 in Time has an 85 base, the Bloodfrenzy sword from Cursed has like 160 or something. Summoned cleric hammers get higher & higher numbers as you get new spells to summon them; I think the best ones have like 650. You can easily see how much THOSE proc.