I don't know about IDPA, but Hogue finger groove grips are not allowed in USPSA Production
The Jericho 491 design has been re-branded a few times (Baby Eagle, Uzi Eagle, Desert Eagle Pistol), but it is an excellent pistol; more closely related to the EAA/Tanfoglio small frame pistols than the CZs (many parts interchange). I guess you could say it's a clone of a clone (which would make the Canik Shark a clone to the third power ).
Back to your question, the Jericho is very similar to the much sought after Tanfoglio Stock II both in form and function so I highly recommend it to anyone looking a bargain on an all steel CZ75 pattern pistol. The Jericho grip is unique among the clones and caters to those shooters with smaller hands and who find the CZs/Tanfos too bulky.