Hi,
i fear you r comming at this at the 'wrong angle' 'M70' or 'Mwoteva' refers to the users weight ie 70 Kg . So the Exo's themselves will have an M70.
But basically, the exo's do offer superior performance to the older model of pro jump. Mainly ( I think ) due to the fact that they r considerably lighter. They aslo now have a much much higher build quality ....im no the on the pay
) and have owned several other makes and these r good.
The only winge i have is re the heal plate. Older models ( and on other makes) the foot/heal plate was plastic and had some 'give'. The new EXo is all metal ( and trust me they feel and look like a 'machine' and not a toy). But if u r wearing light weight trainers like 'converse' or 'vans' the metal heal plate gets uncomfortable .....ITS fine with more 'meati' footwear...especially if it has a built up sole.
but that moan is actually due to higher build quality?!
As if stated ive owned powerisers, 7's and even skyrunners and used powerskips, not tried speedjumpers yet ( but they cost £800+ last i heard) , I endorse projump exo's at the time of going to press..... and every1 ive let try my stilts agrees ( and 1 has gone off and purchased a pair already......at a discount wot i didnt get grrrr doh hehe)
OOO PS there is a 'lil' 2nd winge... I think the protection on the springs should have been thicker...it may not be needed...but peeps 'think' it is