Originally Posted by
PresRDC
I'd strongly second this approach, although I would probably leave my bag at the left luggage at T5. Another alternative, if you don't mind spending the extra money on the HEX v. the Tube, would be to take your bag to Paddington and leave it at the Left Luggage in Paddington, which, if you are walking off the HEX is to your left slightly around the bend of the last platform. I think that is the easiest, but more costly, option.
If he clears immigration at T3, I believe he would have to take the Connect over to T5 from Central (free), and then hop on the Express at T5 (£25+VAT last I took it). Plan on an hour to do this, although I would highly suggest dropping the bag at T5 before leaving, since it will make your departure a little smoother.
Originally Posted by FLgrr
One question I have is will there be a check on bag sizes for the carryon bag when OP returns since he is on to a BA flight with smaller overhead bins? I am using miles for First Class TPA - JNB so that might get me 'special privileges' or not.
There are no "special privileges" when it comes to carry on luggage (unless there is such a thing on BA F, but I've never experienced it in J or Y as a PLT, on a revenue ticket or award ticket).
While I have had what appears to be exceptional luck not being forced to check "BA Oversize" luggage (22" roll-aboard and 23" internal frame backpack, on 5 transits the year, including 4 in the past month) by either the ticketing agent, the security agents, or the gate agents, one should be prepared to do so.
Cheers,
-Andrew