Re: missing 7 characters of a private key in Hexa format ; please help
and if you know Adress or Compressed Adress, then i can give you my Script (php language), instruction. its easy. 
Could you also share the speed you've reached in keys/second? I'm at a very low speed of ~1200 although there is no restriction on number of missing chars or position of them. ~ 1500 keys/sec (cpu Intel Pentium b960)
. Your true, it is very low. But privatkey (7 characters) will be found at 1.5 -3 days. You can wait for some time if the result is worthy to wait 