Ive been doing alot of research on double blades and noticed that exmark use to not support them at all and now seem alittle more open to them. Does examrk have a diffent opinion about double blades this year? Im thinking about trying them in the spring and bought a longer bolt but i read somthing that if u get the wrong bolt it can be a pain to get off. Can you try to explain this to me alittle better? And when using a velke on a metrohp are u suppse to break completly or just squeeze the break levers alittle so u dont harm the trans.?