Speaking on the BST side only, some pre-use comments and/or expected outcomes, assuming level 75:
1. Pet jugs accuracy is shite anyway. Even the ACP and MKP items don't help -that- much
2. In situations where you can get enough TP per 2 mins, your target is usually too weak and even with Big Scissors it's not likely to help that much anyway (but I will spam Scissor Guard myself if farming); it's useful, to finish a mob quicker, but you'd finish it 20 seconds later anyway
3. In situations where you struggle to get 100% TP to even burn off a charge, your target is too strong and will kill your pet most likely before it reaches 100% TP
4. In situations where your pet isn't directly being damaged but you would like to contribute more, the Sabotender jugpet will most likely be the choice here depending on what it takes to use 1000 needles. Regardless, this pet only lasts 15 mins and if it takes 3 charges to use you have to basically spend 10-25k (I forget the price) to deal roughly 3000-4000 damage, assuming 1000-2000 is from DoT and the other 2000 is from 2 1000 Needles, otherwise for most of the population unless you're rich, you'll be doing an extra 3000 damage with CC (assuming 1 charge for Big Scissors and your CC surviving for a full 30 minutes with a 200 damage big scissors);
In a level 23-74 situation, assuming EXP parties and/or solo:
Powerful debuffs assuming no misses (Spore is awesome!), but as you're likely to be fighting stuff 5-8 levels higher, it'll most likely miss, or even resist. Charges can accumulate and used for next fight in between pulls or rests.
For solo, assuming grinding on EPs (it's very effective) then an extra foot kick or lamb chop or 2 now and then will speed up kills, a bit.
Lucki: True, if that is the case, but you also need 100% TP =(