Nice work, @Stu. My recommendation: continue the 24 kg ROP, but on light and medium days, use the 28 kg for any rungs of 1 or 2, e.g., instead of 24 kg x 1-2-3, do 28 kg x 1-2, 24 kg x 3. Finish your 24 kg ROP this way. If you feel particularly strong, you may also use this strategy on heavy day. Feel free to adjust as needed, e.g., on your first ladder, you use all 24 kg. On your 2nd and 3rd ladder, you use 28 kg for some rungs, but then you feel tired, so you go back to 24 kg for all rungs to finish the day.
Test again when you're finished the program, take a week off, then start the program again with 28 kg.
-S-
Test again when you're finished the program, take a week off, then start the program again with 28 kg.
-S-