Stoploss,
Don't know about whether the move in TICK was engineered or not. However, it didn't look that weak.
Good spot on the 10:15 cash HL, + prem level/pattern btw. Your view of the "strong" cash was also supported by a good TICK. 10:32 retrace in TICK was a good additional point of reference for an entry (imo) with -e-prem also below fv.
This is an interesting move this morning (in terms of discussion). On my chart prem looks a bit peaky above fair value at about 10:38 when it looks like a buy program(s) were triggered. Then again around 10:58, at which point the cash went "parabollic" (for want of a better term). Prem predominantly stayed above fair value whilst the cash made that parabollic move (I would guess looking at it that the cause was non-arbitrage based buy programs) and then the enevitable happened, i.e the buy program(s) retraced completely, i.e false move.