Regarding using 4Q's freeplay across two months: We have found when we book our stay across the two months, they will load the freeplay for the end of the first month but not at the beginning of the second month. What we have been doing recently is book the stay at 4Q's starting the first day of the second month and stay somewhere else at the end of the first month. Doing that we have been able to get the freeplay for both months. However I would advise giving them a full days play if you take the freeplay for the first month to keep your daily average whole.
Regarding offers, both of us have pretty consistently given them 1,500-2,000 points worth of play each for a three day trip (that's $12,000-$16,000 play through at $8/point) over the years and had consistently received mailed offers of 3 nights stay, food at Magnolias and $80 freeplay. Starting sometime in 2012 they cut that back to two nights, no food up front and $40 freeplay. When I asked why our offers went down, the host said that our play had dropped. It hadn't, but we were playing a partial day on our going home day and we stopped doing that so we didn't negatively affect our daily average. He did confirm that they base their comps on daily average, not trip average.
Our last stay at 4Q's was end of January/first of February this year. I played 2,000 points over three full days, my wife played 2,500 points. Our offers for May came this week and they were two free nights, no food up front, $40 freeplay and $20 in chips. A little better, but still not where we were before. Given that, I do believe they have tightened down their offers starting sometime in 2012.
Strangely, we started getting reasonably good offers (for Boyd anyway) from MSS about the same time they started going down at 4Q's, even though we had given them less play than 4Q's. So more recently we have started alternating trips between 4Q's and MSS. Our next trip is March 30th through April 3rd, at MSS for a VP tournament April 1-3. We will probably get the 4Q's March freeplay on the 30th and give them about 500 points worth of play before we go over to MSS.