I have been reading the ET board for quite some time now, and wanted to comment on the idea of selling trading systems vs. "just trading larger size" in your own account. Here are a few points that I want to make: 1. The thought that it is easier to "trade larger size" with a profitable system that works sounds good at first, but it still comes down to the emotion involved in placing a larger trade. If a trader has good sense, they don't go from trading 1 lots to 20 lots overnight. A losing trade at $250 that now looks like $5,000 can be a hard thing to handle and the "profitable system" that you are using quickly gets changed due to the fear in losing large amounts of money. Changing the system to suit your risk parameters does just that - it changes the system, which is not what anyone should do - you've got to stick with the original methodology to stay true to the system. 2. Just because one trader thinks that one should "trade bigger size" does not mean that the developer does. If someone told a stock scalper to trade gold credit spreads, does that mean that they should? It's all about personal preference and trading style that makes this industry so unique. ES scalpers can be successful, as too can equity swing traders - it's just a matter of finding what's right for you. Some system traders find that they want to expand their trading business (as entrepreneurs) so offering their ideas to others is a logical step. Don't fault them for it. 3. Since trading is a career just like any other, you need to be satisfied with your accomplishments and feel like you can contribute something. Just trading your own profitable systems is good, but some of us come from the background where we enjoy helping others to succeed. Do you think that a good basketball player who goes into coaching a youth league does it for the money? Why don't they just "play more basketball" and that will be good enough? There is a something to be said about positive feedback and the confirmation of someone saying "thanks, I'm glad that you were able to show me how to improve my trading". 4. True, there are many system vendors that are selling BS systems. There are people like this in any business. But those who have taken the time to develop systems, trade them for themselves and then decide to offer them to others should not be criticized for doing so. I think that the main problem with the posts on ET that deal with this issue is that people think that these "sellers" are only making a few hundred dollars here and there for all the "hassle" that they go through. There is no hassle in dealing with clients if you know how to treat people right and manage your time properly. If you do this the right way, there is a lot more than a few hundred bucks to be made... As you can see, there is no mention of my company, website or e-mail address, so this is not spam. Just the thoughts of someone in the systems business trying to provide a little insight from those who do it right.