I believe setting 6 is the standard PSP mode that has been around for a while, there doesn't seem to be any BPS requirement in the PSP rules before the 4th trigger pull can add shots. It's defined only as a string, I think it will kick into 3 shot burst on the 4th shot as long as your not leaving a full second between shots. Whatever it is, it's very slow and easy to get it into 3 shop burst mode (ramp) with 1 finger.Tadao M8 Manual said:Setting 3 is the PSP auto-response fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4th shot the marker will fire on the pull and release in auto-response mode
• If the user stops firing for more than 1 second, the 3-shot semi-automatic count starts over
Setting 4 is the PSP 50% ramping fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4th shot the marker will ramp, adding 1 additional shot for every 2 pulled by the user, as long as the user pulls the trigger faster than the ramp start setting
• If the user stops firing for more than 1 second, the 3-shot semi-automatic count starts over
Setting 5 is the PSP 100% ramping fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4th shot the marker will ramp up to the loader’s maximum speed or the maximum rate of fire, as long as the user pulls the trigger faster than the ramp start setting
• If the user stops firing for more than 1 second, the 3-shot semi-automatic count starts over
Setting 6 is the PSP burst fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4th shot the marker will burst fire 3 shots per pull
• If the user stops firing for more than 1 second, the 3-shot semi-automatic count starts over
The Max ROF should be capped at 15 (must be less than 15.2 otherwise a penalty can be incurred).
(Edit: It might even work as long as your rate of fire is simply greater than 1bps, so as long is there isn't a full second to reset the count between shots, on the 4th 3-shot burst will kick in)