Switching from 6 to 7 and vice-versa is not such a big issue. It only caused me troubles on some licks, when normally you hit the low E between high notes (a certain part of Satch boogie intro, for example) : each time I hit the low B instead !!!
But there's worse : one year ago, I bought a bass ; played it non stop during 4 weeks. You can't imagine how funny it is to come back to your guitar later on : strings feel like elastics, and you get the impression to hold a toy in your hands, with so many strings and frets, and your fingers look like those of a woodman !!! And forget about the slides for a certain amount of time : 3rds become quickly 5th !!!
After one year of 4, 6 and 7 strings changes, I can tell you that I can play the 3 of them in the dark. For those who already drove on the wrong side of the road (for a french : driving in UK :biggrin: ), it's exactly the same. The first time, you've got everything wrong :
- rearview mirror : you always look at the top of your door instead of the center of the windscreen
- safety belts : you look for them in the middle of the car
- handbrake : you think it's in your door
- coming in the car : you realise after seating at the driver's place that there's no fuÁ£ing stearing wheel on the left side of this car,...
but after 3 or 4 pedestrians and/or dogs killed, everything becomes natural :biggrin:, and you can switch from driving in France to driving on the Big Isle without any problem (if you remember well in which coutry you are : don't drink and drive !!!
(by the way, don't play a 7string if you're already too drunk for a 6, it really doesn't help