Like Ron, I have a
B2910. On 3.7 acres.
If I were in your shoes I would probably decide on a larger size, and buy a
L3130...BUT I don't think I would be happy with a tractor that size for finish mowing. But again, I might be...
Actually, my
B2910 did a pretty good job finish mowing with a RFM, but I had too little to cut and too many things to cut around or close to, so I bought a smaller tractor to mow with and use the larger tractor for the grunt work. That works well for me.
You almost always want to go larger than you first think you need, when you don't know what you need.
When I was tractor shopping a couple years ago, I saw the
B2910 and I wrote it off as TOO BIG for my needs. On a whim, since the cost increase over a
B2410 was not that much, I decided to buy the
B2910 without even test driving one. Best thing I could have done. Little did I know that at the time though.
The fly in the ointment in your case is the need to finish mow that three acres. Can a larger tractor do it to your satisfaction? Larger means heavier, heavier mean possible tire tracks/ruts in soft earth...
Keep in mind that you get a lot more tractor per dollar spend the larger you go.
Best to get it right the first time as changing later costs a lot.
Once you have a tractor, those fifteen acres will offer possibilities that you never thought of before. Bigger tractor makes for easier work.
"Go West young man..." rings in my ears right now for some reason...Well, not exactly...what I am hearing is "Go bigger young man..." /forums/images/graemlins/grin.gif
Bigger than the
B7500 size tractor that is...color doesn't matter...