I recently acquired an MTD fretless fiver.
Previous owner had strung it with Circle K rounds - not sure about the gauge but probably at least .130 for the B.
Decided i would try flats to start with, so strung it with Labellas - [font=arial, sans-serif][size=3]Deep Talkin' 45-128. Loved the sound and feel of Labellas on my old Sandberg California fretless 4 so thought they might work on the MTD as well. [/size][/font]
Gave it a week or so and ... nah, previous owner was right.
Replaced the flats with a set of DR Sunbeams [font=arial, sans-serif][size=3]45-130. Oooh yes! Amazing, spectacular sound, and lovely silky feel. Game over! [/size][/font]