Gary Lunn doesn't have most of his index finger on his right hand and plays mostly with his middle and ring finger. Interestingly, I've found that the older I get the less I use my index finger, and I have no idea why.
All that to say, you could practice plucking the strings with your middle and ring -- or just your index finger if you like that tone better -- and it doesn't take long for it to become natural.
All that to say, you could practice plucking the strings with your middle and ring -- or just your index finger if you like that tone better -- and it doesn't take long for it to become natural.