| You’ll make things worse.
The slower steering you sense is the effect of the change in the tyre section, not from the higher front ride height. The higher 70-profile tire flexes more, reducing the severity of the loads transmitted to the wheel rim, suspension and handlebars. So the steering feels more vague with a higher profile tyre.
Your tyres are an integral part of your suspension, so when you go from a 60 to a less-stiff 70 profile, you’ll often see some benefit from increasing fork compression damping a little.
You can also increase rear ride height further. But, lowering the front ride height or raising the rear ride height are not equivalent adjustments. Lowering the front serves to lower the bike's center of gravity. Raising the rear raises the C.G.
Raising the front end raises the C.G., and a higher C.G. makes the bike go to the tire edge quicker according to Ducati race engineers.
For example, the Aprilia Mille SP was specifically designed with the capability to raise the engine in the frame to increase C.G. to improve flick-ability, and the Aprilia Mille R also has its engine higher in the frame for the same reason.
Another effect from the taller tyre is an increased rake to the forks, so you can try compensating by using the steeper steering head position. This will also give you a 6mm shorter trail but will make the bike more prone to head-shake.  | 
Shazaam!
Hybrid Mode
