... also do I have to bite the bullet and pay $0.99 commission/side through Advantage or Sweet, etc, or can I get away with $0.49 through one of the smaller Dorman IB's? (I hear Dorman calculates span correctly)
In terms of swing trading, this is absolutely NOT the case. I have had probably 75 clients who have started trading live with $20K accounts.
Having been a big Chicago prop futures spread trader in the past, from my experience the firm is going to insist that you're flat at the end of each day - and that IMO kills the trade you're speaking of here on this thread (and similar ones). There are some very experienced prop traders that carry substantial positions (in Chicago mostly yield curve and STIRS) but they've earned their chops at the firm and are way up there in terms of positive equity with the firm.
For day trading, if you are tight with your legs there's no way you're going to come even fractionally close to the $100K you suggest with the liquidity that's being discussed for these particular trades in this thread.
Just to clarify for question A... i meant what is a good front month to try eliminate delta risk of the underlying.. especially in CL and NG
There's a big issue with lag and synthetic Spread expressions - charting the exchange supported Spread solves that issue.
Eliminate the first three months for sure. We actually trade '18, '19, '20. There's a big issue with lag and synthetic Spread expressions - charting the exchange supported Spread solves that issue.