Just like I tell my junior bowlers, any time you make a drastic change to your game, which you have done, you should expect your average to drop because you are breaking "old habits" and creating "new habits". As for what anyone else says to you about your lower than usual average, be they on this board or in your leagues, don't let it get to you. If they want to talk or act like that, then let them. As long as you
know you aren't sandbagging, then that's what's important. Besides, the average bowler can't see the difference between a sandbagger and someone trying to work on his game.
If it makes you feel better, knowing all the questions you've asked on this board, I commend you for working on your game to be better. I know how hard it is to change and get out of a comfort zone, and I know how hard it is to get back to a standard that was once achievable with ease. But once you catapault yourself over that old standard, you can have the satisfaction of telling all of the people who are calling you a sandbagger now to stick it where the sun don't shine.
And when they start begging you to bowl with them when you are better, you can either forgive them and agree to it, or give them the brush off. Me? I choose the latter, but hey, that's how I go about things.
Keep your head up and don't let the naysayers get to you.