The 1 series is not a larger tractor than a BX, it is the same frame size. The 3PH lift arms are longer on a 1 series so that is why it may be a little longer.
Dealers and other people agree that the Boomer 25 is not a SCUT.
You need to get out and look at one for yourself and then look at the BX or 1 series and a B series or a 2000 series. If you look at Boomer 25 you will see that everything about it is larger than a true SCUT.
People can agree to anything, and still be wrong.
A BX and the 1 series are the same size, and it's all based upon some magically longer 3pt lift arms? Seriously, you're really going to make that claim? Okay.
Deere 1025R:
Weight (shipping): 1444 lbs [654 kg]
Wheelbase: 57.1 inches [145 cm]
Length: 87.6 inches [222 cm]
102.6 inches [260 cm] (with hitch and
magic 3pt arms)
Width: 47.2 inches [119 cm] (r# tires) 47.3 (r$ tires)
Height (hood): 41.5 inches [105 cm]
Height (ROPS): 78.6 inches [199 cm]
Clearance (front axle): 12.3 inches [31 cm]
Rear axle: Flanged
Front tread: 32.2 inches [81 cm]
Rear tread: 35.2 inches [89 cm]
BX2660:
Weight: 1,389 lbs [630 kg]
Wheelbase: 55.1 inches [139 cm]
Length: 95.5 inches [242 cm]
Width: 44.5 inches [113 cm]
Height (ROPS): 70.4 inches [178 cm]
Clearance (front axle): 8.7 inches [22 cm]
Front tread: 36.6 inches [92 cm]
Rear tread: 32.2 inches [81 cm]
The 1 series is heavier, longer, taller, has a longer wheelbase, and is bigger in every way except rear tread....heck, it has 50% more ground clearance. Say what you want, but the two aren't the same size....magic lift arms or not. I do have to admit that I love how the fact that the 1 series is a full 10% longer becomes just "a little longer" when it suites you....it's almost cute.
I've seen all of the machines in question, in person, and they're all SCUTs. They weigh well under 2K pounds, have 2-range hydros, low limits on the 3pt and FELs, etc, etc, etc. They aren't all the exact same size, but they're all in the same ballpark. Much like the term "CUT" covers a broad range of machine sizes, there will be variation within the "SCUT" class. Trying to suggest that a 15-1700lb machine (LS and NH disagree on the shipping weights) is in the same category as something like your 4240 is just silly.
I'm pretty sure that if the FEL on my LS can lift it, it's still a SCUT, and a Boomer 25 wouldn't be a challenge.
Seriously, I can't fathom why you beat this poor, dead horse about how an inch here or there suddenly makes some tractors not SCUTs, or not "true SCUTs.". Who cares what title gets used? If somebody wants to buy one, they walk up to it, and if it seems big, they look at a different model...easy.