I currently have 28mm Spesh Armadillo ACs on my bike. Was thinking of changing down to 23mm tyres (possibly All-condition Pro's or Scwhalbe Marathon Plus). Do I need to be extra careful on wet surfaces/manhole covers etc when riding on the slimmer tyres? Will the difference (in terms of handling) be noticeable? Thanks. Edit: Sorry, maybe this should've gone in know-how section. Oops.