Production Logging - Gas/Water Hold Up Tool Application

We have a requirement to identify water entry points on a producing gas well. Over few weeks time production has dropped following a recent matrix stimulation job. Water Hold-Up is suspected. 

For that purpose, we are planning to use a water hold-up tool but the contractor is suggesting to use an additional Gas Hold-Up tool as well in order to compliment the results of Water Hold-Up tool. Suggestions requested if it is useful to run Gas Hold Up tool along with Water Hold Up or latter should suffice in above case.

Above shall be followed with a water shut-off.

It is a mature field with an average reservoir pressure at approx 220 psi. WGR is 20 bbl/mmscf.

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