Industrials (R4's) are designed for operating on relatively hard surfaces, have very good puncture resistance, but traction on soft ground not a whole lot better than turfs. They will also damage soft lawns but not quite as bad as bars (I assume you mean mean Ags, or R1's when you say bars). On CUT's, Turfs are far and away the optimum tire type for operating on lawns and R1's are optimum in most situations off the lawn. Folks who need to use the same tractor on and off the lawn generally compromise in both situations by going with R4 tires. If you can swing it, you will be in for less dissapointment if you get seperate tractors for on the lawn (with turfs) and for off the lawn (with R1's). If you are limited to a single tractor, then R4's are more than likely going to be your best bet, and they are found on more than 75% of CUTs. Just prepare yourself for some lawn damage and some traction issues off the lawn. Personally, I would never consider R4 tires for any of my own tractor applications. I have (2) tractors dedicated to the lawn, each with turf tires and (4) for off the lawn, all with R1's. I am not someone given to compromise as is required if you try and use R4 tires for applications other than industrial for which they were developed. I dont want any damage on my lawn, and I want to always have the maximum available traction force from my tractors in field applications. R4's wouldnt provide me with that. I dont do any "industrial" work, and luckily, in 40 years of tractor operation, I have not puntured a rear R1 in the fields or woods on my farm.