I usually don't mind about this stuff since I adjust my strategy for each. I can understand why brokers offer dynamic spreads ('cause I work for one) as the price erratically fluctuates. Fixed spreads just offer more risk for the broker in a volatile market.
I totally agree with you. I just thought in different way in previous time (I though that fixed spreads are easier to calculate and more convenient) and it was my real mistake.
If you want to end up with a nonaverage net worth, a “learn from someone else” attitude is paramount. Putting your ego aside and admitting that you don’t know it all isn’t easy, but it is the mindset of true winner ----Paul Tudor Jones.