Originally Posted by
gsa103
On 105, the brake centering adjusted is a Philips screw head which is virtually guaranteed to have the head strip out after you made 20-30 adjustments (should take a few years). On Ultegra/Dura-Ace this is an Allen key which will last virtually forever.
Use proper screwdriver properly and it will last long long time.
Taking money from people - Sora groupset is a better groupset than most riders are riders. If you know what I mean. Just ride the damn thing and get the groupset that is not too expensive for your income.