When equipped with a slate, glass or bronze scythe and a papyrus basket you will use the Rythmic Strength skill to increase the amount of grass collected.
The average amount of grass collected per pick appears to be
Incorrect (skill*quality / 10000) + (1 if the fractional part of skill*quality/10000 is >= 0.5) Chadra
From the forums info on RS and the type of slate you use.
RS:1 it doesn't matter what type of scythe you use. At RS:2-3 and RS:5-7 a glass scythe is better. At RS:4 a slate scythe is better than a glass scythe.
In particular:
| Skill | Slate | Glass | 4k event |
| 1 | 1 | 1 | 1 |
| 2 | 1 | 1.6 | |
| 3 | 1.6 | 1.9 | |
| 4 | 1.8 | 1.2 | |
| 5 | 1 | 2.5 | |
| 6 | 1.2 | 2.8 | |
| 7 | 1.4 | 3.1 |
Increasing skill seems to be totally random, 0.1% chance per pick.
This now appears to be a leveling skill, Much like Stone Blade Fabrication. In order to gain level 2 ( and any benefit from this skill ), You must gather grass while holding a scythe and a basket. Advancement appears to be random with a stupidly small chance. I got level two after exactly 500 picks and assumed it was a set value, But others are reporting different values. You may also be limited in skill advancement by the quality of the scythe You use - Gorm
I got to level 2 with a Q:3000 Scythe after plucking 800-something grass -Kylas
I had the following results with a Slate Scythe at Q:2000. At 80 grass - Lvl 2. At 550 grass - Lvl 3. At 580 grass - Lvl 4. At level 4 was getting 2.5+ per pull. - Neophant
I got Lv. 2 and Lv. 3 really quickly by picking grass with a Slate Scythe, but I wasn't getting 2.5+ per pull. More like 1.25 - 1.5 at Lv. 3. I may need to pick more to get Lv. 4. - LucasKonner
I'm doing around 1.3 with lvl 4 RS and Q:3000 scythe, could this be accounted to the ecology/time/weather -Kylas
With Lvl. 7 skill, I seem to get roughly 1.5 with slate, and 2.5 with glass. I also noticed my yield actually seemed to get worse as I gained levels, topping out around lvl 3 with my slate. You're definetly not limited in skill gain by the tool you use. I fairly steadily got to 6 with my slate, and then switched to glass soon after. -Risky
I'm still at Level 1 after over 1200 picks with a Slate Scythe. I've just been picking and mining and dowsing for the last 3+ hours. -tehmoosh
I got from level 1 to level 7 in something like 20-30 picks. Perhaps a bug with skill increase was fixed? This was using a 3k quality glass scythe. -Slumpy
I went from level 3 to level 7 in just 4 minutes of picking - Main chat said increases each of 1 minute apart. I too believe this is (or was) a bug - SanderDolphin
I am at 4122 collected and only level 4, got level 2 at 203, lvl 3 at 1479 and 4 at 1891...ugh. -Electa
The above formula still seems to apply even given an event 4000 quality scythe, providing 3.8 grass per pull at RS 7 - Aoreias
Only getting 2.x Picks of Grass at level 7 with a Glass Scythe, skill is bugged Chadra
To reach level 2, it took me about 2500 picks with a 2000 quality slate scythe. Ahziza
I was working ryhtmic and sheet glass at the same time one (in game) night. The region was nearly empty. I bounced back and forth between two spots picking grass next to the glazier's bench I was using. Both skills rose very fast, usually alternating. I went from level 2 to 6 in sheet, and from level 2 to 5 in rythmic in approx. 30 minutes. Noobiehotep