Second spire of Ancestors does what?

Here is, what raidloot is telling us
[16394] Second Spire of Ancestors
Classes: SHM/254
Target: Self
Beneficial: Blockable
Casting: 0s
Duration: 00:01:30 (15 ticks), Extend: No
1: Increase Healing by 2000
2: Limit Min Level: 75
Lucy says:
Second Spire of Ancestors
Slot Description
1: Unknown #392 (100/2000/0)
2: Limit: Min Level (75)
My eyeballing test in guildlobby:
Cast heal on myself about 20 times. Lowest heal around 7300 hp.
Launch second spire. Cast heal on myself around 10 heals while secondspire runs down. Lowest heal with second spire running around 7600 hp.
Conclusion:
Taking into consideration the small sample size, I get the feeling that second spire does not add 2000HP to our heal.
As far as I know, the heal improvements from the AAs a fix percentange and always applied, no random stuff.
This leads to my believe that actually my minimum heal should be around 7k.
If second spire would add 2k to each heal, while spire is running I expcet to see heals never lower than 9k.
Does anyone know what second spire should do?
[16394] Second Spire of Ancestors
Classes: SHM/254
Target: Self
Beneficial: Blockable
Casting: 0s
Duration: 00:01:30 (15 ticks), Extend: No
1: Increase Healing by 2000
2: Limit Min Level: 75
Lucy says:
Second Spire of Ancestors
Slot Description
1: Unknown #392 (100/2000/0)
2: Limit: Min Level (75)
My eyeballing test in guildlobby:
Cast heal on myself about 20 times. Lowest heal around 7300 hp.
Launch second spire. Cast heal on myself around 10 heals while secondspire runs down. Lowest heal with second spire running around 7600 hp.
Conclusion:
Taking into consideration the small sample size, I get the feeling that second spire does not add 2000HP to our heal.
As far as I know, the heal improvements from the AAs a fix percentange and always applied, no random stuff.
This leads to my believe that actually my minimum heal should be around 7k.
If second spire would add 2k to each heal, while spire is running I expcet to see heals never lower than 9k.
Does anyone know what second spire should do?