Capt S&L hi, don't know what model you fly, on the 800 with 26k the increment to your go-around climb gradient pack off is 0.2%. At max landing weight 18 degrees SL packs on the single eng climb gradient is 5.15% so not that shabby anyway.
However to ans your qn think hot heavy maybe overweight and possibly high, apply a bit of common and, - you get the picture.
To get a little more scientific look at your A/C and what it will/can achieve, compare it you what you want it to achieve, run a few calculations into the fields you go to.
With your two eng case on the 800 packs off landing climb weight increase 1200kg. On previous older A/C I have flown some airfield briefs used to give a temp when a packs off approach/landing was mandatory.
All the best