Breloom was my favourite pokemon competitively.
So, the choice of Poison Heal or Techinician?
One major factor is Bullet seed.
There is a 3/10 chance for it to hit 2 or 3 times, 2/10 times for it to hit 4 or 5 times.
The average. Calculated without STAB and Technician, then added Technician.
Average = 82.5
2.5 over Seed Bomb.
Yeah, it's overhyped, and unreliable.
However, Technician Adamant Mach Punch vs Neutral 0/0 Doryuuzu
Regular Poison Heal Adamant Mach Punch vs Neutral 0/0 Doryuuzu
Someone calculate those (the computer I'm using right now is messed up)
Use Spinda for the calculation. Same Defense.