My (new) only issue with SSTs is on wet animals. I shot a nice buck this year who took off down a ravine and died. After recovery, I was cleaning him out and noticed his entrance wound side lung smashed against his heart. Looked like his heart actually smashed thru his lung. I washed him out and started looking for broken ribs, an exit hole... anything. I found the bullet on the outside of two cracked ribs in chunks covering a 2"-3" area.
I did some research and found out that in tests, bonded bullets penetrate wet hide much better than unbonded. BUT like you said, a "hot" ABLR could just punch a laser beam thru the animal allowing it to expire much slower.
Taking that in to account, I am now making both rounds (SST and ABLR) and trying to get like grain bullets to fly as close to each other out to 500yds. This way I have one round for dry and one for wet that fly close to each other. (STILL IN TESTING)
I can definitely see water causing a premature expansion. I have read multiple times that Ballistic Tips and Accubonds have same POI, you can provably try that.
I know for a fact the SST and Ballistic Tip/ Accubond do not have the same POI. The rifle I used for Javelina last week loves the 139gr SST, and the Accubond I used has a POI 4" to the left at 100 yds. The lighter 120gr Ballistic Tip has a POI of almost 6" to the left of the SST.
Let me know please what results you get out if your tests.
Thanks