Well admittedly it's a lot more simple with futures. See the bid buy the bid, see the offer sell the offer. The spread is the spread and is almost always narrow (especially during RTH session). I plan my entry (ex a long) to hit right as price is ticking down on a pullback, almost always getting filled sometimes at a better price. Then when it comes to time exit as price is ticking up I purposely enter a limit at or below current price. Again almost always getting filled, sometimes at a better price. Of course there are times when an entry was a mistake, or for an exit when price is really ripping but I don't expect it to last - in either case a market order is used bam I'm out. It took me a long time to understand the mechanics of it, but after it happening just by chance a few times I thought why not. HTH
Inside bars are consolidations, on a lower time frame they often appear as a standard pullback. As such they are breakout patterns in trends....in trading ranges, not so much except as scalps.
No one has mentioned Harami and Engulfing candlestick patterns? Both Harami and Engulfing, are 2-candle patterns, with 1 candle being an "inside bar". Look 'em up... The previously posted Inside Bar Pattern Explained link is nothing unique. Just saying. Good trades to all.