Number range buffer - can this really be? SAP BW 710

Hello everone,
hope you are fine!
I am looking for some real light into the number range buffering
I have extracted 2 Million data from DS 0PCA_EC_3 into a standard DSO which took inititally 13 h. (14 h in Production)
Now I figured the InfoObjects with high number range levels and enabled the buffering there.
The result is - which I can not believe at the moment and thats why I am looking first for answers before I disable the number range buffering and ran again into 13 h load - that the load took plus activation 45 MINUTES!!!!!
The Questions are:
1. Can this be possible that the performance increase so dramatically due to number range buffering?
     I have not checked the SM66 for selection to table NRIV at the initial run
2. If this is realy the reason do I have to transport the settings I did in SNRO?
3. What if I decide not to use the number range buffering after some loads, is it easy to disable again without any data issue?
Thanks really for your input these are much appreciated.
bye Ömer

Hi everyone,
is there no one who can at least share his/her experience with number range buffering?
thanks for any input on this.
bye Ömer

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    ================================
    Note: 62077
    Summary
    Symptom
    Gaps (jumps) occur when allocating internal numbers.
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    - KREDITOR   (Vendor master data)
    Area HR:
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    Area PM, PP, PS
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    - QMEL_NR    (Number range - message)
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    - MATERIALNR (Material master)
    Area QM:
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    - QMERK      (Confirmation number)
    - QMERKMALE  (Master inspection characteristics in QSS)
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    - QMETHODEN  (Inspection methods in QM)
    - ROUTING_Q  (Number ranges for inspection plans)
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    Area Workflow:
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    Number range objects that have to be continuous due to legal specifications (for example, RF_BELEG, RV_BELEG), or due to a corresponding application logic must not be buffered using the buffering type 'Main memory buffering'. See also Notes 37844 (for RF_BELEG) and 23835 (for RV_BELEG).
    Header Data
    Release Status: Released for Customer
    Released on: 10.07.2007  12:57:00
    Priority: Recommendations/additional info
    Category: Consulting
    Primary Component: BC-SRV-NUM Number Range Management
    Secondary Components: CA-GTF General Application Functions
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    CO-OM-CCA Cost Center Accounting
    CO-OM-CCA-A Master Data
    CO-PA Profitability Analysis
    FI Financial Accounting
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    FI-GL General Ledger Accounting
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    PM Plant Maintenance
    PP Production Planning and Control
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    QM-PT Quality Planning
    QM-QN Quality Notifications
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