Lateral stiffness is a result of spoke pattern/number and rim strength. Vertical stiffness/strength is affected by tension, but definitely dependent on what/who the bike's for. Getting just enough tension for rider weight/application is what I'd recommend. Sometimes there's only 1-complete spoke turn between 'a bit too much give' and 'fucking uncomfortably bone-jarring'.
Lateral stiffness is a result of spoke pattern/number and rim strength. Vertical stiffness/strength is affected by tension, but definitely dependent on what/who the bike's for. Getting just enough tension for rider weight/application is what I'd recommend. Sometimes there's only 1-complete spoke turn between 'a bit too much give' and 'fucking uncomfortably bone-jarring'.