Been out of the business for 5 years and I know things change and get better so need your guys help in recommendations for a great pre-spray. I will mostly be doing residential with the occasional rental. My old company specialized in rat nasty rentals and I know what works well on those but don't want to really use a high ph spray on res. I am leaning towards Saigers but didn't know if you guys recommend something better? Any help would be great and appreciated.