You should use what you feel comfortable with using. I was merely suggesting that focusing on a quicker bar interval often times allows one truly to miss the forest for the trees. Not a bad idea to have a map of the forest in the form of a 5 or even a 15 minute chart, even if you are using a 1 minute to manage your actual entries/exits. I use a fairly fast chart myself, but I always keep the 5 and 15 minute in view, and periodically check the daily as well (maybe 2 to 3's a day ... but I trade all day except in the summer.
What is your market?
I feel comfortable using any interval I have tested enough with a written trading plan, so that is not really an issue. As I said I am trying to learn how to deal with S/R, specifically horizontal S/R as the suggestion has been made around using MAs or Trendlines as such.
Today I plotted the 1500 Tick, just to make sure we are talking in the same language.
The day opened at a R level 56.50, I was trading something else at the moment, so I couldn't pay attention to this in RT (And to reply to your question, it was CL), but in hindsight I noticed that the first thing that happened here was a LH below R, but it failed and then came a HL above that R, from there a trend started. It rallied towards 67.75 that was my next level plotted.
Before they could make it there, a Break of LSL ocurred, but instead of turning into a trend it rapidly became a congestion.
Finally 67.75 was reached and the trend restarted. It rallied again towards the next level or R and just a couple of ticks above it we found S strong enough to change the trend.
I noticed that the distance from the last level (67.75) was exactly the same of the distance from the start of this leg of the trend 63.50. So the first thing that came into my mind was mean reversion.
Prices returned towards 67.75, but bounced and a HL formed, by then I was free of my CL obligations, so I Gave it a try and following the same logic as at the open Long was the way to go. But instead of trending the market made a LH so the long was scratched.
But this LH did not turn into a trend so the next time the market made a HL the way to go was a reentry.
The market rallied again and at the point where I was expecting my mean reversion theory to hold, it didnt

.
Then the market kept on climbing until it hit the next level 76.75 there I got a DT and a Poke below last swing low, but it was just a poke and prices returned to the trend.
At the time of this post I am waiting for the trend to reach the next level at 87,25.... I will update this later, and see if I missed something.