If we take it to extremes, who do you think could push a car faster a very strong 120kg bloke with an average 100m sprint time or a super fast but not so strong 70kg bloke...........
Interesting point. It is hard to say. No doubt the strong bloke would get it moving quicker but would he be able to sustain the speed whilst the super fast bloke once he gains speed will continue to accelerate.
This is relevant in bobsleigh as there are 1 or 2 light but very quick guys who push as fast as the strong heavy guys.
Its all about training to your strengths and the type of pusher you are e.g you wouldnt train a 400m runner in the style of a 60m runner and vice versa (even though there would be some improvements in certain areas the strengths of that athlete would be lost)
In releation to me I am one of the "heavy strong guys" or at least am training to be as good as the best ones. However my running coach has been training me like a 100m sprinter. My 60m times have shot up which shows his stuff is working. However my push times have gone down as I have not worked on the stuff that makes me quick at pushing which is weight and strength.