on my squire standard strat, if i tap the volume pot you can hear it in the amp. i have a seymour duncan hotrail in the bridge although its been there some time 3 years, i dunno if its due to the pick up,

also the humbucker alone is considerably louder than the single coils regardless to pick up height

could it be related

any suggestion would be good thanks
Spear Gladius II
Squire Standard Stratocaster LTD ED c/w hotrails
Squire Deluxe Strat c/w Hotrails
Dean Baby V
Tanglewood Acoustic
Bugera 333 Head
Laney Cab Vintage 30's
Dunlop Crybaby
Boss RC-2
Boss MT-2 (modified)
Marshall Jackhammer
well yeah the SD is much better and higher output than the cheap strat coils. try replacing the volume pot, they are just a few bucks.