The bloke in the pub is talking shite!
Met one of these know it all foccers while I was sat next to my fazer in the carpark at Matlock, quietly smoking a fag, minding my business, he cabbaged me for ages about what he thought was best for my bike, until I told him he was talking crap.
Mike full montied mine a few years ago and it goes brilliant .
It starts better, low revs no surging, just smooth power from tickover to the redline.
The midrange is very strong and by 7k you need to hang on!
The set up works well with a good end can, I used a Bos carbon with exup headers, I now have a rare full akra system and the low 2k revs seem even stronger. It is even more ballistic at high revs.
For your Dad pootling along is a breeze, even better than standard as the low speed surge as you open the throttle is smoothed out, so no worries there. You can make good progress and clean overtakes from any revs.
Its brilliant and makes a great engine even better.
Mike is brilliant and you won't regret it
Jacko