I'm sorry if this has been asked/discussed before but I'd just like to ask if you need your C+G 2391 to be able to test your own + others work or do you just need to be competent (ie: know what you're doing, interrupting results but not necessarly having your 2391)
Sorry if this has been asked before, just need other people's points of veiw.
Sorry if this has been asked before, just need other people's points of veiw.