Hi [MENTION=306000]Syr4RinNC[/MENTION] thanks for the reply. Tried to post reply last night but seems to have disappeared into the internet!
Weight wise nothing crazy added to the vehicle in terms of a bumper chop out, winch or anything. Swapped out the bash plate for the TRD one and added Toyota's own rock rails. Got a Gobi stealth rack coming in the next month or so and that will open up the possibility of a RTT, but not likely soon, I like a ground tent. Plan is to use the motor for some light of roading in the near future and build it up over time to something a little more serious say in the next 3-5 years. Cargo weight would likely be your average 4-5 days on the road camping with two adults and a little kid, so reasonably light. Not planning on towing anything.
Being based near Boston and having to deal with snow and rain a decent amount the SL's with their silica compound sound like a good bet as well. I know the LT's have a slightly deeper tread which compensate for the lack of that silica in their make up, so guessing that point maybe a little bit of a wash between the two.
Figured with the lifespan of the wheels knocking around the 55K mark would be good to get something that the motor and my experience with it could grow into, so would rather get something that would allow for more performance from the get go rather than find I want to chop the tires out again in a year or so.
Good to know the SL's air down and run OK around the 20PSI mark. Still relatively inexperienced in any serious off road driving but know that makes a good difference and couldn't find anything specific to airing down SL rated tires.
Thanks again for the response.
Bob.