Regulation Strategy Review:

A well-executed weighoff hones good grand regulating to exceed customer expectations. And the Grandwork System provides a weighoff-worthy regulation every time, with much of the work (including weighoff) performed on a bench off-site, a benefit to both customer and technician, particularly in this time of pandemic.

A simple list describes the process:

1. Assess condition and eliminate obstructions
2. Test bedding and correct (no pedal yet)
3. Take samples of bedding and strike
4. Fix action position on benchtop
5. Set up bedding first, then strike
6. Create spacing scale along strike profile
7. Sample full regulation on 2-3 notes, choose specs, and validate
8. Prepare parts and materials
9. Re-pin hammers and rep levers as needed
10. Make parts work vertically – particularly hammers
11. Regulate globally (not sectionally)
12. Follow best order of operations from checklist
13. Weigh off for either consistent downweight or consistent balanceweight
14. Touch up regulation for consistent aftertouch
15. Install action in piano and touch up bedding with pedal
16. Tweak hammer spacing
17. Pre-lift wire for stability and adjust pitch
18. Fit strings to hammers (mating and leveling in one step)
19. Regulate dampers to leveled strings
20. Regulate trapwork and pedals
21. Tune, touch up hammer fit, and voice

What goals aim this work? Another simple list:

1. Hammers vertical at strike, pre-voicing all soft pedal positions
2. Hammer travel vertical to maximize power and repetition
3. Hammers mated with strings at pitch and in tune
4. Even and sufficient action friction 
5. Consistent and adequate aftertouch
6. Least compromise in specs throughout
7. Most even hammer weights given constraints
8. Consistently balanced upweights and downweights

And even simpler:

1. Stability
2. Consistency
3. Responsiveness
4. Dynamic range
5. Tone

The entire regulation prepares for voicing. The consistency achievable with this system simplifies and enhances performance, power, and tone. Strings well-fit to vertical hammers produce clarity at all dynamic levels and incremental soft pedaling. The strategic preparation assures no surprises and speeds implementation.