feels about right i guess, again not too much to compare it to really as this bike has always had this issue in one form or another since picking it up end of last year.. thought it was rust in tank, then carb, blockage in exhaust, all of the work done (new carb, decoked exhaust, tank lined) improved the issue and overall performance but it is still present, will look at getting compression tested and check seals, anyway to do this without cracking the cases? perhaps wd40 around the seal while running?
thanks again