The 'offense' that has been taken in this thread, to the specific computer requirements, is interesting. In fact it is amusing.
It is JC's course. His rules. If you don't want to comply, don't take the course. His specific wording is, 'IN THIS COURSE, . . .'. It is fine to disagree with his opinion. But, he has a specific reason - which he apparently was quite willing to share when someone actually asked HIM - for his computer requirements IN HIS COURSE.
If you are a Teric user and are offended, so be it. Don't take JC's course. I happen to dive a Perdix and a Liquivision X1 (yes, I still have one, and dive it). The Perdix is nice. But, if JC stated it had to be an Eon, for example, in his course, I wouldn't take offense. I might not take the course. OR, I might just rent an Eon, if I really wanted to take the course with him. Either way, no harm, no foul - it is HIS course. If I choose to take it, I choose to accept the prerequisites, which may include equipment.
The question is being raised in the 'Computers . . . forum', and it is very legitimate for someone to wonder why such a requirement might be part of a course. JC has given his reasons. They are not rubbish. I might not agree with them, but they are - for HIS course - apparently valid. He quite probably has established over time a certain way of doing things in his course, in order to emphasize specific points, and to achieve specific outcomes. And, apparently, the Petrel or the Perdix are what works for him.
I require double steel cylinders for my tec courses - double AL80s are not acceptable (even though - personally - double AL80s are one of my favorite rigs in terms of weight and buoyancy characteristics). My reason involves gas supply, and the margins I want to have. Others may disagree. If so, fine, don't take a tec course from me. I won't be offended, and you won't be inconvenienced.
Chatterton holds some strong opinions. Frankly, he also has creds to hold therm. I don't have to agree with him. But, I won't simply dismiss his opinions out of hand. Rather, I would want to better understand WHY he holds them.
It is JC's course. His rules. If you don't want to comply, don't take the course. His specific wording is, 'IN THIS COURSE, . . .'. It is fine to disagree with his opinion. But, he has a specific reason - which he apparently was quite willing to share when someone actually asked HIM - for his computer requirements IN HIS COURSE.
If you are a Teric user and are offended, so be it. Don't take JC's course. I happen to dive a Perdix and a Liquivision X1 (yes, I still have one, and dive it). The Perdix is nice. But, if JC stated it had to be an Eon, for example, in his course, I wouldn't take offense. I might not take the course. OR, I might just rent an Eon, if I really wanted to take the course with him. Either way, no harm, no foul - it is HIS course. If I choose to take it, I choose to accept the prerequisites, which may include equipment.
The question is being raised in the 'Computers . . . forum', and it is very legitimate for someone to wonder why such a requirement might be part of a course. JC has given his reasons. They are not rubbish. I might not agree with them, but they are - for HIS course - apparently valid. He quite probably has established over time a certain way of doing things in his course, in order to emphasize specific points, and to achieve specific outcomes. And, apparently, the Petrel or the Perdix are what works for him.
I require double steel cylinders for my tec courses - double AL80s are not acceptable (even though - personally - double AL80s are one of my favorite rigs in terms of weight and buoyancy characteristics). My reason involves gas supply, and the margins I want to have. Others may disagree. If so, fine, don't take a tec course from me. I won't be offended, and you won't be inconvenienced.
Chatterton holds some strong opinions. Frankly, he also has creds to hold therm. I don't have to agree with him. But, I won't simply dismiss his opinions out of hand. Rather, I would want to better understand WHY he holds them.