as smart_trade put it, 30 & 60 were just emphasising the importance of 3184 level....
a process, to confirm the PIVOTS formed in lower TFs, by referring to key bar lows in 30 (and maybe 60 too)
All i wish to say is that we need to wait for a bar to complete, be it any time frame before deciding on the basis of that bar !!!!
3184 was a PL till 1.23 PM in 30 minutes TF, but not at 1.30!!!
100% agree that 30 and 60 would emphasize the importance of a PL in lower TF, but I personally would prefer to have the 30 and 60 minutes bar complete before accepting their emphasis on 20/15 TF PL!!! Rather a PL in 30 should overrule a PL in 15!!!
Just my personal opinion.