Uprate motorhome - any negatives

No-one has mentioned the VEL benefits. I had my 2017 2.0 litre Euro V1  Bailey uprated to 3850kg, the maximum axle load and my annual VEL is £165, which I think is cheaper than 3500kg MHs.

yes, there is that stupid anomaly still in the uk tax system.....heavier vans being cheaper to tax than light ones.....

however, the advantages, for us, of being 'light' are sufficient to keep us from getting fat.....I could uprate, have plenty of axle capacity, but I already run nicely under 3.5t when fully loaded.

..but we prefer not to be speed restricted....sometimes we like to get a move on and can do car speeds when desired...

we like to pop into continental towns which are often restricted to 3.5t...

then there is the 'interesting' debate regarding tolls....we like being class two....

in the OPs case, I'm beginning to think this might be one of those large vans produced on 'impossibly light' chassis which is going to be marginal even when lightly loaded with Mrs OH and a tank of water.

id be interested to get more make/model info....